Home / 648,049.10-972,073.65-368,113.10

Finding the Fourth Proportional to 648,049.10, 972,073.65 and 368,113.10

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Solution

The fourth proportional to 648,049.10, 972,073.65 and 368,113.10 is: 552,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,049.10 : 972,073.65 = 368,113.10 : x
  2. Step 2: Convert to fraction form
    648,049.10/972,073.65 = 368,113.10/x
  3. Step 3: Cross multiply
    648,049.10x = 972,073.65 × 368,113.10
  4. Step 4: Simplify right side
    648,049.10x = 357,833,044,729.82
  5. Step 5: Solve for x
    x = 357,833,044,729.82/648,049.10
  6. Step 6: Final answer
    x = 552,169.65

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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.