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Finding the Fourth Proportional to 659,646.29, 910,332.20 and 373,160.63

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Solution

The fourth proportional to 659,646.29, 910,332.20 and 373,160.63 is: 514,973.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,646.29 : 910,332.20 = 373,160.63 : x
  2. Step 2: Convert to fraction form
    659,646.29/910,332.20 = 373,160.63/x
  3. Step 3: Cross multiply
    659,646.29x = 910,332.20 × 373,160.63
  4. Step 4: Simplify right side
    659,646.29x = 339,700,137,261.29
  5. Step 5: Solve for x
    x = 339,700,137,261.29/659,646.29
  6. Step 6: Final answer
    x = 514,973.16

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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.