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Finding the Fourth Proportional to 898,800.64, 1,240,337.28 and 496,384

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Solution

The fourth proportional to 898,800.64, 1,240,337.28 and 496,384 is: 685,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,800.64 : 1,240,337.28 = 496,384 : x
  2. Step 2: Convert to fraction form
    898,800.64/1,240,337.28 = 496,384/x
  3. Step 3: Cross multiply
    898,800.64x = 1,240,337.28 × 496,384
  4. Step 4: Simplify right side
    898,800.64x = 615,683,580,395.52
  5. Step 5: Solve for x
    x = 615,683,580,395.52/898,800.64
  6. Step 6: Final answer
    x = 685,005.72

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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.