Home / 724,279.95-999,630.02-418,301.34

Finding the Fourth Proportional to 724,279.95, 999,630.02 and 418,301.34

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Solution

The fourth proportional to 724,279.95, 999,630.02 and 418,301.34 is: 577,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,279.95 : 999,630.02 = 418,301.34 : x
  2. Step 2: Convert to fraction form
    724,279.95/999,630.02 = 418,301.34/x
  3. Step 3: Cross multiply
    724,279.95x = 999,630.02 × 418,301.34
  4. Step 4: Simplify right side
    724,279.95x = 418,146,574,167.37
  5. Step 5: Solve for x
    x = 418,146,574,167.37/724,279.95
  6. Step 6: Final answer
    x = 577,327.28

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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.