Home / 928,723.52-1,392,848.40-288,902.12

Finding the Fourth Proportional to 928,723.52, 1,392,848.40 and 288,902.12

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Solution

The fourth proportional to 928,723.52, 1,392,848.40 and 288,902.12 is: 433,279.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,723.52 : 1,392,848.40 = 288,902.12 : x
  2. Step 2: Convert to fraction form
    928,723.52/1,392,848.40 = 288,902.12/x
  3. Step 3: Cross multiply
    928,723.52x = 1,392,848.40 × 288,902.12
  4. Step 4: Simplify right side
    928,723.52x = 402,396,855,598.61
  5. Step 5: Solve for x
    x = 402,396,855,598.61/928,723.52
  6. Step 6: Final answer
    x = 433,279.49

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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.