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Finding the Fourth Proportional to 565,158.17, 779,915.14 and 307,033.05

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Solution

The fourth proportional to 565,158.17, 779,915.14 and 307,033.05 is: 423,703.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,158.17 : 779,915.14 = 307,033.05 : x
  2. Step 2: Convert to fraction form
    565,158.17/779,915.14 = 307,033.05/x
  3. Step 3: Cross multiply
    565,158.17x = 779,915.14 × 307,033.05
  4. Step 4: Simplify right side
    565,158.17x = 239,459,726,332.48
  5. Step 5: Solve for x
    x = 239,459,726,332.48/565,158.17
  6. Step 6: Final answer
    x = 423,703.91

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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.