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Finding the Fourth Proportional to 724,282.04, 999,632.92 and 418,303.44

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Solution

The fourth proportional to 724,282.04, 999,632.92 and 418,303.44 is: 577,330.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,282.04 : 999,632.92 = 418,303.44 : x
  2. Step 2: Convert to fraction form
    724,282.04/999,632.92 = 418,303.44/x
  3. Step 3: Cross multiply
    724,282.04x = 999,632.92 × 418,303.44
  4. Step 4: Simplify right side
    724,282.04x = 418,149,889,173.25
  5. Step 5: Solve for x
    x = 418,149,889,173.25/724,282.04
  6. Step 6: Final answer
    x = 577,330.19

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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.