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Finding the Fourth Proportional to 476,358.57, 657,350.71 and 282,774.57

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Solution

The fourth proportional to 476,358.57, 657,350.71 and 282,774.57 is: 390,214.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,358.57 : 657,350.71 = 282,774.57 : x
  2. Step 2: Convert to fraction form
    476,358.57/657,350.71 = 282,774.57/x
  3. Step 3: Cross multiply
    476,358.57x = 657,350.71 × 282,774.57
  4. Step 4: Simplify right side
    476,358.57x = 185,882,064,359.45
  5. Step 5: Solve for x
    x = 185,882,064,359.45/476,358.57
  6. Step 6: Final answer
    x = 390,214.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.