Home / 420,555.17-630,841.61-150,700.89

Finding the Fourth Proportional to 420,555.17, 630,841.61 and 150,700.89

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Solution

The fourth proportional to 420,555.17, 630,841.61 and 150,700.89 is: 226,054.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,555.17 : 630,841.61 = 150,700.89 : x
  2. Step 2: Convert to fraction form
    420,555.17/630,841.61 = 150,700.89/x
  3. Step 3: Cross multiply
    420,555.17x = 630,841.61 × 150,700.89
  4. Step 4: Simplify right side
    420,555.17x = 95,068,392,452.79
  5. Step 5: Solve for x
    x = 95,068,392,452.79/420,555.17
  6. Step 6: Final answer
    x = 226,054.51

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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.