Home / 572,719.64-858,267.03-421,776.14

Finding the Fourth Proportional to 572,719.64, 858,267.03 and 421,776.14

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Solution

The fourth proportional to 572,719.64, 858,267.03 and 421,776.14 is: 632,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,719.64 : 858,267.03 = 421,776.14 : x
  2. Step 2: Convert to fraction form
    572,719.64/858,267.03 = 421,776.14/x
  3. Step 3: Cross multiply
    572,719.64x = 858,267.03 × 421,776.14
  4. Step 4: Simplify right side
    572,719.64x = 361,996,555,002.66
  5. Step 5: Solve for x
    x = 361,996,555,002.66/572,719.64
  6. Step 6: Final answer
    x = 632,065.90

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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.