Home / 986,738.76-1,478,916.21-480,541.20

Finding the Fourth Proportional to 986,738.76, 1,478,916.21 and 480,541.20

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Solution

The fourth proportional to 986,738.76, 1,478,916.21 and 480,541.20 is: 720,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,738.76 : 1,478,916.21 = 480,541.20 : x
  2. Step 2: Convert to fraction form
    986,738.76/1,478,916.21 = 480,541.20/x
  3. Step 3: Cross multiply
    986,738.76x = 1,478,916.21 × 480,541.20
  4. Step 4: Simplify right side
    986,738.76x = 710,680,170,252.85
  5. Step 5: Solve for x
    x = 710,680,170,252.85/986,738.76
  6. Step 6: Final answer
    x = 720,231.33

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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.