Home / 724,534.18-999,837.72-434,309.72

Finding the Fourth Proportional to 724,534.18, 999,837.72 and 434,309.72

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Solution

The fourth proportional to 724,534.18, 999,837.72 and 434,309.72 is: 599,335.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,534.18 : 999,837.72 = 434,309.72 : x
  2. Step 2: Convert to fraction form
    724,534.18/999,837.72 = 434,309.72/x
  3. Step 3: Cross multiply
    724,534.18x = 999,837.72 × 434,309.72
  4. Step 4: Simplify right side
    724,534.18x = 434,239,240,218.64
  5. Step 5: Solve for x
    x = 434,239,240,218.64/724,534.18
  6. Step 6: Final answer
    x = 599,335.76

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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.