Home / 724,536.20-999,864.33-397,863.20

Finding the Fourth Proportional to 724,536.20, 999,864.33 and 397,863.20

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Solution

The fourth proportional to 724,536.20, 999,864.33 and 397,863.20 is: 549,053.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,536.20 : 999,864.33 = 397,863.20 : x
  2. Step 2: Convert to fraction form
    724,536.20/999,864.33 = 397,863.20/x
  3. Step 3: Cross multiply
    724,536.20x = 999,864.33 × 397,863.20
  4. Step 4: Simplify right side
    724,536.20x = 397,809,221,899.66
  5. Step 5: Solve for x
    x = 397,809,221,899.66/724,536.20
  6. Step 6: Final answer
    x = 549,053.62

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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.