Home / 724,301.02-999,488.46-402,011.20

Finding the Fourth Proportional to 724,301.02, 999,488.46 and 402,011.20

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Solution

The fourth proportional to 724,301.02, 999,488.46 and 402,011.20 is: 554,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,301.02 : 999,488.46 = 402,011.20 : x
  2. Step 2: Convert to fraction form
    724,301.02/999,488.46 = 402,011.20/x
  3. Step 3: Cross multiply
    724,301.02x = 999,488.46 × 402,011.20
  4. Step 4: Simplify right side
    724,301.02x = 401,805,555,190.75
  5. Step 5: Solve for x
    x = 401,805,555,190.75/724,301.02
  6. Step 6: Final answer
    x = 554,749.40

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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.