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Finding the Fourth Proportional to 565,572, 779,910.72 and 374,515.68

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Solution

The fourth proportional to 565,572, 779,910.72 and 374,515.68 is: 516,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,572 : 779,910.72 = 374,515.68 : x
  2. Step 2: Convert to fraction form
    565,572/779,910.72 = 374,515.68/x
  3. Step 3: Cross multiply
    565,572x = 779,910.72 × 374,515.68
  4. Step 4: Simplify right side
    565,572x = 292,088,793,640.09
  5. Step 5: Solve for x
    x = 292,088,793,640.09/565,572
  6. Step 6: Final answer
    x = 516,448.47

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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.