Home / 763,728.40-1,145,592.60-443,551.60

Finding the Fourth Proportional to 763,728.40, 1,145,592.60 and 443,551.60

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Solution

The fourth proportional to 763,728.40, 1,145,592.60 and 443,551.60 is: 665,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,728.40 : 1,145,592.60 = 443,551.60 : x
  2. Step 2: Convert to fraction form
    763,728.40/1,145,592.60 = 443,551.60/x
  3. Step 3: Cross multiply
    763,728.40x = 1,145,592.60 × 443,551.60
  4. Step 4: Simplify right side
    763,728.40x = 508,129,430,678.16
  5. Step 5: Solve for x
    x = 508,129,430,678.16/763,728.40
  6. Step 6: Final answer
    x = 665,327.40

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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.