Home / 898,403.80-1,347,605.70-645,149.20

Finding the Fourth Proportional to 898,403.80, 1,347,605.70 and 645,149.20

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Solution

The fourth proportional to 898,403.80, 1,347,605.70 and 645,149.20 is: 967,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,403.80 : 1,347,605.70 = 645,149.20 : x
  2. Step 2: Convert to fraction form
    898,403.80/1,347,605.70 = 645,149.20/x
  3. Step 3: Cross multiply
    898,403.80x = 1,347,605.70 × 645,149.20
  4. Step 4: Simplify right side
    898,403.80x = 869,406,739,270.44
  5. Step 5: Solve for x
    x = 869,406,739,270.44/898,403.80
  6. Step 6: Final answer
    x = 967,723.80

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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.