Home / 686,071.15-1,029,013.32-180,589.81

Finding the Fourth Proportional to 686,071.15, 1,029,013.32 and 180,589.81

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Solution

The fourth proportional to 686,071.15, 1,029,013.32 and 180,589.81 is: 270,860.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,071.15 : 1,029,013.32 = 180,589.81 : x
  2. Step 2: Convert to fraction form
    686,071.15/1,029,013.32 = 180,589.81/x
  3. Step 3: Cross multiply
    686,071.15x = 1,029,013.32 × 180,589.81
  4. Step 4: Simplify right side
    686,071.15x = 185,829,319,946.27
  5. Step 5: Solve for x
    x = 185,829,319,946.27/686,071.15
  6. Step 6: Final answer
    x = 270,860.13

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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.