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Finding the Fourth Proportional to 572,018.49, 858,253.73 and 217,126.71

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Solution

The fourth proportional to 572,018.49, 858,253.73 and 217,126.71 is: 325,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,018.49 : 858,253.73 = 217,126.71 : x
  2. Step 2: Convert to fraction form
    572,018.49/858,253.73 = 217,126.71/x
  3. Step 3: Cross multiply
    572,018.49x = 858,253.73 × 217,126.71
  4. Step 4: Simplify right side
    572,018.49x = 186,349,803,363.23
  5. Step 5: Solve for x
    x = 186,349,803,363.23/572,018.49
  6. Step 6: Final answer
    x = 325,775.84

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.