Home / 674,253.90-930,498.60-387,774.18

Finding the Fourth Proportional to 674,253.90, 930,498.60 and 387,774.18

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Solution

The fourth proportional to 674,253.90, 930,498.60 and 387,774.18 is: 535,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,253.90 : 930,498.60 = 387,774.18 : x
  2. Step 2: Convert to fraction form
    674,253.90/930,498.60 = 387,774.18/x
  3. Step 3: Cross multiply
    674,253.90x = 930,498.60 × 387,774.18
  4. Step 4: Simplify right side
    674,253.90x = 360,823,331,606.15
  5. Step 5: Solve for x
    x = 360,823,331,606.15/674,253.90
  6. Step 6: Final answer
    x = 535,144.60

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1.5x scale

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.