Home / 497,520.03-688,550.85-485,581.08

Finding the Fourth Proportional to 497,520.03, 688,550.85 and 485,581.08

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Solution

The fourth proportional to 497,520.03, 688,550.85 and 485,581.08 is: 672,027.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,520.03 : 688,550.85 = 485,581.08 : x
  2. Step 2: Convert to fraction form
    497,520.03/688,550.85 = 485,581.08/x
  3. Step 3: Cross multiply
    497,520.03x = 688,550.85 × 485,581.08
  4. Step 4: Simplify right side
    497,520.03x = 334,347,265,377.92
  5. Step 5: Solve for x
    x = 334,347,265,377.92/497,520.03
  6. Step 6: Final answer
    x = 672,027.75

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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.