Home / 870,831.30-1,306,246.95-658,254.90

Finding the Fourth Proportional to 870,831.30, 1,306,246.95 and 658,254.90

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Solution

The fourth proportional to 870,831.30, 1,306,246.95 and 658,254.90 is: 987,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,831.30 : 1,306,246.95 = 658,254.90 : x
  2. Step 2: Convert to fraction form
    870,831.30/1,306,246.95 = 658,254.90/x
  3. Step 3: Cross multiply
    870,831.30x = 1,306,246.95 × 658,254.90
  4. Step 4: Simplify right side
    870,831.30x = 859,843,455,447.56
  5. Step 5: Solve for x
    x = 859,843,455,447.56/870,831.30
  6. Step 6: Final answer
    x = 987,382.35

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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.