Home / 998,479.40-1,497,719.10-578,834.60

Finding the Fourth Proportional to 998,479.40, 1,497,719.10 and 578,834.60

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Solution

The fourth proportional to 998,479.40, 1,497,719.10 and 578,834.60 is: 868,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,479.40 : 1,497,719.10 = 578,834.60 : x
  2. Step 2: Convert to fraction form
    998,479.40/1,497,719.10 = 578,834.60/x
  3. Step 3: Cross multiply
    998,479.40x = 1,497,719.10 × 578,834.60
  4. Step 4: Simplify right side
    998,479.40x = 866,931,636,160.86
  5. Step 5: Solve for x
    x = 866,931,636,160.86/998,479.40
  6. Step 6: Final answer
    x = 868,251.90

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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.