Home / 858,981.28-1,185,203.28-519,442.24

Finding the Fourth Proportional to 858,981.28, 1,185,203.28 and 519,442.24

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Solution

The fourth proportional to 858,981.28, 1,185,203.28 and 519,442.24 is: 716,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,981.28 : 1,185,203.28 = 519,442.24 : x
  2. Step 2: Convert to fraction form
    858,981.28/1,185,203.28 = 519,442.24/x
  3. Step 3: Cross multiply
    858,981.28x = 1,185,203.28 × 519,442.24
  4. Step 4: Simplify right side
    858,981.28x = 615,644,646,618.55
  5. Step 5: Solve for x
    x = 615,644,646,618.55/858,981.28
  6. Step 6: Final answer
    x = 716,714.86

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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.