Home / 708,974.76-1,062,864.36-309,322.40

Finding the Fourth Proportional to 708,974.76, 1,062,864.36 and 309,322.40

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Solution

The fourth proportional to 708,974.76, 1,062,864.36 and 309,322.40 is: 463,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,974.76 : 1,062,864.36 = 309,322.40 : x
  2. Step 2: Convert to fraction form
    708,974.76/1,062,864.36 = 309,322.40/x
  3. Step 3: Cross multiply
    708,974.76x = 1,062,864.36 × 309,322.40
  4. Step 4: Simplify right side
    708,974.76x = 328,767,754,709.66
  5. Step 5: Solve for x
    x = 328,767,754,709.66/708,974.76
  6. Step 6: Final answer
    x = 463,722.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.