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Finding the Fourth Proportional to 509,695.81, 762,880.15 and 374,724.19

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Solution

The fourth proportional to 509,695.81, 762,880.15 and 374,724.19 is: 560,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,695.81 : 762,880.15 = 374,724.19 : x
  2. Step 2: Convert to fraction form
    509,695.81/762,880.15 = 374,724.19/x
  3. Step 3: Cross multiply
    509,695.81x = 762,880.15 × 374,724.19
  4. Step 4: Simplify right side
    509,695.81x = 285,869,646,275.83
  5. Step 5: Solve for x
    x = 285,869,646,275.83/509,695.81
  6. Step 6: Final answer
    x = 560,863.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.