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Finding the Fourth Proportional to 713,302.59, 984,671.70 and 499,282.77

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Solution

The fourth proportional to 713,302.59, 984,671.70 and 499,282.77 is: 689,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,302.59 : 984,671.70 = 499,282.77 : x
  2. Step 2: Convert to fraction form
    713,302.59/984,671.70 = 499,282.77/x
  3. Step 3: Cross multiply
    713,302.59x = 984,671.70 × 499,282.77
  4. Step 4: Simplify right side
    713,302.59x = 491,629,613,916.61
  5. Step 5: Solve for x
    x = 491,629,613,916.61/713,302.59
  6. Step 6: Final answer
    x = 689,230.10

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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.