Home / 676,788.48-934,066.08-390,251.52

Finding the Fourth Proportional to 676,788.48, 934,066.08 and 390,251.52

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Solution

The fourth proportional to 676,788.48, 934,066.08 and 390,251.52 is: 538,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,788.48 : 934,066.08 = 390,251.52 : x
  2. Step 2: Convert to fraction form
    676,788.48/934,066.08 = 390,251.52/x
  3. Step 3: Cross multiply
    676,788.48x = 934,066.08 × 390,251.52
  4. Step 4: Simplify right side
    676,788.48x = 364,520,707,500.44
  5. Step 5: Solve for x
    x = 364,520,707,500.44/676,788.48
  6. Step 6: Final answer
    x = 538,603.59

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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.