Home / 387,125.20-579,132.60-349,800.40

Finding the Fourth Proportional to 387,125.20, 579,132.60 and 349,800.40

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Solution

The fourth proportional to 387,125.20, 579,132.60 and 349,800.40 is: 523,295.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,125.20 : 579,132.60 = 349,800.40 : x
  2. Step 2: Convert to fraction form
    387,125.20/579,132.60 = 349,800.40/x
  3. Step 3: Cross multiply
    387,125.20x = 579,132.60 × 349,800.40
  4. Step 4: Simplify right side
    387,125.20x = 202,580,815,133.04
  5. Step 5: Solve for x
    x = 202,580,815,133.04/387,125.20
  6. Step 6: Final answer
    x = 523,295.35

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1.5x scale

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.