Home / 763,349.40-1,145,024.10-687,241.80

Finding the Fourth Proportional to 763,349.40, 1,145,024.10 and 687,241.80

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Solution

The fourth proportional to 763,349.40, 1,145,024.10 and 687,241.80 is: 1,030,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,349.40 : 1,145,024.10 = 687,241.80 : x
  2. Step 2: Convert to fraction form
    763,349.40/1,145,024.10 = 687,241.80/x
  3. Step 3: Cross multiply
    763,349.40x = 1,145,024.10 × 687,241.80
  4. Step 4: Simplify right side
    763,349.40x = 786,908,423,527.38
  5. Step 5: Solve for x
    x = 786,908,423,527.38/763,349.40
  6. Step 6: Final answer
    x = 1,030,862.70

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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.