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Finding the Fourth Proportional to 508,904.93, 766,931.49 and 458,367.31

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Solution

The fourth proportional to 508,904.93, 766,931.49 and 458,367.31 is: 690,770.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,904.93 : 766,931.49 = 458,367.31 : x
  2. Step 2: Convert to fraction form
    508,904.93/766,931.49 = 458,367.31/x
  3. Step 3: Cross multiply
    508,904.93x = 766,931.49 × 458,367.31
  4. Step 4: Simplify right side
    508,904.93x = 351,536,320,670.27
  5. Step 5: Solve for x
    x = 351,536,320,670.27/508,904.93
  6. Step 6: Final answer
    x = 690,770.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.