Home / 724,282.17-999,633.09-418,303.56

Finding the Fourth Proportional to 724,282.17, 999,633.09 and 418,303.56

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Solution

The fourth proportional to 724,282.17, 999,633.09 and 418,303.56 is: 577,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,282.17 : 999,633.09 = 418,303.56 : x
  2. Step 2: Convert to fraction form
    724,282.17/999,633.09 = 418,303.56/x
  3. Step 3: Cross multiply
    724,282.17x = 999,633.09 × 418,303.56
  4. Step 4: Simplify right side
    724,282.17x = 418,150,080,240.80
  5. Step 5: Solve for x
    x = 418,150,080,240.80/724,282.17
  6. Step 6: Final answer
    x = 577,330.35

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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.