Home / 898,378.80-1,347,568.20-645,124.20

Finding the Fourth Proportional to 898,378.80, 1,347,568.20 and 645,124.20

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Solution

The fourth proportional to 898,378.80, 1,347,568.20 and 645,124.20 is: 967,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,378.80 : 1,347,568.20 = 645,124.20 : x
  2. Step 2: Convert to fraction form
    898,378.80/1,347,568.20 = 645,124.20/x
  3. Step 3: Cross multiply
    898,378.80x = 1,347,568.20 × 645,124.20
  4. Step 4: Simplify right side
    898,378.80x = 869,348,856,970.44
  5. Step 5: Solve for x
    x = 869,348,856,970.44/898,378.80
  6. Step 6: Final answer
    x = 967,686.30

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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.