Home / 418,331.04-577,449.20-257,401.92

Finding the Fourth Proportional to 418,331.04, 577,449.20 and 257,401.92

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Solution

The fourth proportional to 418,331.04, 577,449.20 and 257,401.92 is: 355,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,331.04 : 577,449.20 = 257,401.92 : x
  2. Step 2: Convert to fraction form
    418,331.04/577,449.20 = 257,401.92/x
  3. Step 3: Cross multiply
    418,331.04x = 577,449.20 × 257,401.92
  4. Step 4: Simplify right side
    418,331.04x = 148,636,532,782.46
  5. Step 5: Solve for x
    x = 148,636,532,782.46/418,331.04
  6. Step 6: Final answer
    x = 355,308.40

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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.