Home / 539,862.20-810,522.90-315,452.60

Finding the Fourth Proportional to 539,862.20, 810,522.90 and 315,452.60

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Solution

The fourth proportional to 539,862.20, 810,522.90 and 315,452.60 is: 473,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,862.20 : 810,522.90 = 315,452.60 : x
  2. Step 2: Convert to fraction form
    539,862.20/810,522.90 = 315,452.60/x
  3. Step 3: Cross multiply
    539,862.20x = 810,522.90 × 315,452.60
  4. Step 4: Simplify right side
    539,862.20x = 255,681,556,164.54
  5. Step 5: Solve for x
    x = 255,681,556,164.54/539,862.20
  6. Step 6: Final answer
    x = 473,605.22

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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.