Home / 1,178,432.61-1,626,191.22-720,314.23

Finding the Fourth Proportional to 1,178,432.61, 1,626,191.22 and 720,314.23

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Solution

The fourth proportional to 1,178,432.61, 1,626,191.22 and 720,314.23 is: 994,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,432.61 : 1,626,191.22 = 720,314.23 : x
  2. Step 2: Convert to fraction form
    1,178,432.61/1,626,191.22 = 720,314.23/x
  3. Step 3: Cross multiply
    1,178,432.61x = 1,626,191.22 × 720,314.23
  4. Step 4: Simplify right side
    1,178,432.61x = 1,171,368,675,102.76
  5. Step 5: Solve for x
    x = 1,171,368,675,102.76/1,178,432.61
  6. Step 6: Final answer
    x = 994,005.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.