Home / 698,155.20-1,047,232.80-521,008.20

Finding the Fourth Proportional to 698,155.20, 1,047,232.80 and 521,008.20

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Solution

The fourth proportional to 698,155.20, 1,047,232.80 and 521,008.20 is: 781,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,155.20 : 1,047,232.80 = 521,008.20 : x
  2. Step 2: Convert to fraction form
    698,155.20/1,047,232.80 = 521,008.20/x
  3. Step 3: Cross multiply
    698,155.20x = 1,047,232.80 × 521,008.20
  4. Step 4: Simplify right side
    698,155.20x = 545,616,876,108.96
  5. Step 5: Solve for x
    x = 545,616,876,108.96/698,155.20
  6. Step 6: Final answer
    x = 781,512.30

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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.