Home / 485,881.04-670,545.87-268,088.65

Finding the Fourth Proportional to 485,881.04, 670,545.87 and 268,088.65

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Solution

The fourth proportional to 485,881.04, 670,545.87 and 268,088.65 is: 369,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,881.04 : 670,545.87 = 268,088.65 : x
  2. Step 2: Convert to fraction form
    485,881.04/670,545.87 = 268,088.65/x
  3. Step 3: Cross multiply
    485,881.04x = 670,545.87 × 268,088.65
  4. Step 4: Simplify right side
    485,881.04x = 179,765,737,051.38
  5. Step 5: Solve for x
    x = 179,765,737,051.38/485,881.04
  6. Step 6: Final answer
    x = 369,978.91

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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.