Home / 726,366.60-1,089,549.90-442,931.40

Finding the Fourth Proportional to 726,366.60, 1,089,549.90 and 442,931.40

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Solution

The fourth proportional to 726,366.60, 1,089,549.90 and 442,931.40 is: 664,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,366.60 : 1,089,549.90 = 442,931.40 : x
  2. Step 2: Convert to fraction form
    726,366.60/1,089,549.90 = 442,931.40/x
  3. Step 3: Cross multiply
    726,366.60x = 1,089,549.90 × 442,931.40
  4. Step 4: Simplify right side
    726,366.60x = 482,595,862,576.86
  5. Step 5: Solve for x
    x = 482,595,862,576.86/726,366.60
  6. Step 6: Final answer
    x = 664,397.10

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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.