Home / 897,855.50-1,239,066.92-489,983.68

Finding the Fourth Proportional to 897,855.50, 1,239,066.92 and 489,983.68

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Solution

The fourth proportional to 897,855.50, 1,239,066.92 and 489,983.68 is: 676,191.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,855.50 : 1,239,066.92 = 489,983.68 : x
  2. Step 2: Convert to fraction form
    897,855.50/1,239,066.92 = 489,983.68/x
  3. Step 3: Cross multiply
    897,855.50x = 1,239,066.92 × 489,983.68
  4. Step 4: Simplify right side
    897,855.50x = 607,122,572,001.66
  5. Step 5: Solve for x
    x = 607,122,572,001.66/897,855.50
  6. Step 6: Final answer
    x = 676,191.85

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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.