Home / 870,862.95-1,306,376.87-338,425.04

Finding the Fourth Proportional to 870,862.95, 1,306,376.87 and 338,425.04

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Solution

The fourth proportional to 870,862.95, 1,306,376.87 and 338,425.04 is: 507,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,862.95 : 1,306,376.87 = 338,425.04 : x
  2. Step 2: Convert to fraction form
    870,862.95/1,306,376.87 = 338,425.04/x
  3. Step 3: Cross multiply
    870,862.95x = 1,306,376.87 × 338,425.04
  4. Step 4: Simplify right side
    870,862.95x = 442,110,644,484.83
  5. Step 5: Solve for x
    x = 442,110,644,484.83/870,862.95
  6. Step 6: Final answer
    x = 507,669.60

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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.