Home / 678,184.40-1,015,721.40-662,632.40

Finding the Fourth Proportional to 678,184.40, 1,015,721.40 and 662,632.40

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Solution

The fourth proportional to 678,184.40, 1,015,721.40 and 662,632.40 is: 992,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,184.40 : 1,015,721.40 = 662,632.40 : x
  2. Step 2: Convert to fraction form
    678,184.40/1,015,721.40 = 662,632.40/x
  3. Step 3: Cross multiply
    678,184.40x = 1,015,721.40 × 662,632.40
  4. Step 4: Simplify right side
    678,184.40x = 673,049,909,013.36
  5. Step 5: Solve for x
    x = 673,049,909,013.36/678,184.40
  6. Step 6: Final answer
    x = 992,429.06

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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.