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Finding the Fourth Proportional to 565,654.38, 780,617.82 and 307,548.69

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Solution

The fourth proportional to 565,654.38, 780,617.82 and 307,548.69 is: 424,425.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,654.38 : 780,617.82 = 307,548.69 : x
  2. Step 2: Convert to fraction form
    565,654.38/780,617.82 = 307,548.69/x
  3. Step 3: Cross multiply
    565,654.38x = 780,617.82 × 307,548.69
  4. Step 4: Simplify right side
    565,654.38x = 240,077,987,931.66
  5. Step 5: Solve for x
    x = 240,077,987,931.66/565,654.38
  6. Step 6: Final answer
    x = 424,425.23

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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.