Home / 870,988.96-1,201,964.76-489,023.95

Finding the Fourth Proportional to 870,988.96, 1,201,964.76 and 489,023.95

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Solution

The fourth proportional to 870,988.96, 1,201,964.76 and 489,023.95 is: 674,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,988.96 : 1,201,964.76 = 489,023.95 : x
  2. Step 2: Convert to fraction form
    870,988.96/1,201,964.76 = 489,023.95/x
  3. Step 3: Cross multiply
    870,988.96x = 1,201,964.76 × 489,023.95
  4. Step 4: Simplify right side
    870,988.96x = 587,789,554,696.00
  5. Step 5: Solve for x
    x = 587,789,554,696.00/870,988.96
  6. Step 6: Final answer
    x = 674,853.05

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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.