Home / 840,819.13-1,160,355.05-458,870.47

Finding the Fourth Proportional to 840,819.13, 1,160,355.05 and 458,870.47

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Solution

The fourth proportional to 840,819.13, 1,160,355.05 and 458,870.47 is: 633,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,819.13 : 1,160,355.05 = 458,870.47 : x
  2. Step 2: Convert to fraction form
    840,819.13/1,160,355.05 = 458,870.47/x
  3. Step 3: Cross multiply
    840,819.13x = 1,160,355.05 × 458,870.47
  4. Step 4: Simplify right side
    840,819.13x = 532,452,667,160.37
  5. Step 5: Solve for x
    x = 532,452,667,160.37/840,819.13
  6. Step 6: Final answer
    x = 633,254.70

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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.