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Finding the Fourth Proportional to 555,854.40, 834,559.20 and 345,902.40

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Solution

The fourth proportional to 555,854.40, 834,559.20 and 345,902.40 is: 519,337.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,854.40 : 834,559.20 = 345,902.40 : x
  2. Step 2: Convert to fraction form
    555,854.40/834,559.20 = 345,902.40/x
  3. Step 3: Cross multiply
    555,854.40x = 834,559.20 × 345,902.40
  4. Step 4: Simplify right side
    555,854.40x = 288,676,030,222.08
  5. Step 5: Solve for x
    x = 288,676,030,222.08/555,854.40
  6. Step 6: Final answer
    x = 519,337.49

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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.