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Finding the Fourth Proportional to 636,820.28, 955,386.48 and 523,160.20

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Solution

The fourth proportional to 636,820.28, 955,386.48 and 523,160.20 is: 784,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,820.28 : 955,386.48 = 523,160.20 : x
  2. Step 2: Convert to fraction form
    636,820.28/955,386.48 = 523,160.20/x
  3. Step 3: Cross multiply
    636,820.28x = 955,386.48 × 523,160.20
  4. Step 4: Simplify right side
    636,820.28x = 499,820,181,954.10
  5. Step 5: Solve for x
    x = 499,820,181,954.10/636,820.28
  6. Step 6: Final answer
    x = 784,868.51

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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.