Home / 879,370.29-1,319,151.02-280,190.61

Finding the Fourth Proportional to 879,370.29, 1,319,151.02 and 280,190.61

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Solution

The fourth proportional to 879,370.29, 1,319,151.02 and 280,190.61 is: 420,316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,370.29 : 1,319,151.02 = 280,190.61 : x
  2. Step 2: Convert to fraction form
    879,370.29/1,319,151.02 = 280,190.61/x
  3. Step 3: Cross multiply
    879,370.29x = 1,319,151.02 × 280,190.61
  4. Step 4: Simplify right side
    879,370.29x = 369,613,727,574.97
  5. Step 5: Solve for x
    x = 369,613,727,574.97/879,370.29
  6. Step 6: Final answer
    x = 420,316.37

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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.