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Finding the Fourth Proportional to 565,673.13, 780,642.27 and 307,564.83

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Solution

The fourth proportional to 565,673.13, 780,642.27 and 307,564.83 is: 424,446.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,673.13 : 780,642.27 = 307,564.83 : x
  2. Step 2: Convert to fraction form
    565,673.13/780,642.27 = 307,564.83/x
  3. Step 3: Cross multiply
    565,673.13x = 780,642.27 × 307,564.83
  4. Step 4: Simplify right side
    565,673.13x = 240,098,107,063.36
  5. Step 5: Solve for x
    x = 240,098,107,063.36/565,673.13
  6. Step 6: Final answer
    x = 424,446.72

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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.