Home / 763,913.60-1,145,114.40-337,680.80

Finding the Fourth Proportional to 763,913.60, 1,145,114.40 and 337,680.80

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Solution

The fourth proportional to 763,913.60, 1,145,114.40 and 337,680.80 is: 506,187.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,913.60 : 1,145,114.40 = 337,680.80 : x
  2. Step 2: Convert to fraction form
    763,913.60/1,145,114.40 = 337,680.80/x
  3. Step 3: Cross multiply
    763,913.60x = 1,145,114.40 × 337,680.80
  4. Step 4: Simplify right side
    763,913.60x = 386,683,146,683.52
  5. Step 5: Solve for x
    x = 386,683,146,683.52/763,913.60
  6. Step 6: Final answer
    x = 506,187.02

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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.