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Finding the Fourth Proportional to 679,793.70, 938,095.46 and 373,869.76

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Solution

The fourth proportional to 679,793.70, 938,095.46 and 373,869.76 is: 515,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,793.70 : 938,095.46 = 373,869.76 : x
  2. Step 2: Convert to fraction form
    679,793.70/938,095.46 = 373,869.76/x
  3. Step 3: Cross multiply
    679,793.70x = 938,095.46 × 373,869.76
  4. Step 4: Simplify right side
    679,793.70x = 350,725,524,487.29
  5. Step 5: Solve for x
    x = 350,725,524,487.29/679,793.70
  6. Step 6: Final answer
    x = 515,929.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.