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Finding the Fourth Proportional to 534,534.72, 800,686.32 and 320,624.24

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Solution

The fourth proportional to 534,534.72, 800,686.32 and 320,624.24 is: 480,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,534.72 : 800,686.32 = 320,624.24 : x
  2. Step 2: Convert to fraction form
    534,534.72/800,686.32 = 320,624.24/x
  3. Step 3: Cross multiply
    534,534.72x = 800,686.32 × 320,624.24
  4. Step 4: Simplify right side
    534,534.72x = 256,719,442,828.40
  5. Step 5: Solve for x
    x = 256,719,442,828.40/534,534.72
  6. Step 6: Final answer
    x = 480,267.11

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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.