Home / 678,182.40-1,015,718.40-662,630.40

Finding the Fourth Proportional to 678,182.40, 1,015,718.40 and 662,630.40

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Solution

The fourth proportional to 678,182.40, 1,015,718.40 and 662,630.40 is: 992,426.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,182.40 : 1,015,718.40 = 662,630.40 : x
  2. Step 2: Convert to fraction form
    678,182.40/1,015,718.40 = 662,630.40/x
  3. Step 3: Cross multiply
    678,182.40x = 1,015,718.40 × 662,630.40
  4. Step 4: Simplify right side
    678,182.40x = 673,045,889,679.36
  5. Step 5: Solve for x
    x = 673,045,889,679.36/678,182.40
  6. Step 6: Final answer
    x = 992,426.06

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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.