Home / 678,870.17-1,018,305.24-173,432.26

Finding the Fourth Proportional to 678,870.17, 1,018,305.24 and 173,432.26

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Solution

The fourth proportional to 678,870.17, 1,018,305.24 and 173,432.26 is: 260,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,870.17 : 1,018,305.24 = 173,432.26 : x
  2. Step 2: Convert to fraction form
    678,870.17/1,018,305.24 = 173,432.26/x
  3. Step 3: Cross multiply
    678,870.17x = 1,018,305.24 × 173,432.26
  4. Step 4: Simplify right side
    678,870.17x = 176,606,979,143.04
  5. Step 5: Solve for x
    x = 176,606,979,143.04/678,870.17
  6. Step 6: Final answer
    x = 260,148.39

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Double scale
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Similar ratio
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1.5x scale

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.