Home / 670,057.90-924,895.39-428,989.75

Finding the Fourth Proportional to 670,057.90, 924,895.39 and 428,989.75

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Solution

The fourth proportional to 670,057.90, 924,895.39 and 428,989.75 is: 592,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,057.90 : 924,895.39 = 428,989.75 : x
  2. Step 2: Convert to fraction form
    670,057.90/924,895.39 = 428,989.75/x
  3. Step 3: Cross multiply
    670,057.90x = 924,895.39 × 428,989.75
  4. Step 4: Simplify right side
    670,057.90x = 396,770,642,132.25
  5. Step 5: Solve for x
    x = 396,770,642,132.25/670,057.90
  6. Step 6: Final answer
    x = 592,143.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.