Home / 698,577.20-1,047,865.80-486,000.80

Finding the Fourth Proportional to 698,577.20, 1,047,865.80 and 486,000.80

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Solution

The fourth proportional to 698,577.20, 1,047,865.80 and 486,000.80 is: 729,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,577.20 : 1,047,865.80 = 486,000.80 : x
  2. Step 2: Convert to fraction form
    698,577.20/1,047,865.80 = 486,000.80/x
  3. Step 3: Cross multiply
    698,577.20x = 1,047,865.80 × 486,000.80
  4. Step 4: Simplify right side
    698,577.20x = 509,263,617,092.64
  5. Step 5: Solve for x
    x = 509,263,617,092.64/698,577.20
  6. Step 6: Final answer
    x = 729,001.20

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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.