Home / 989,427.20-1,484,140.80-934,314.80

Finding the Fourth Proportional to 989,427.20, 1,484,140.80 and 934,314.80

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Solution

The fourth proportional to 989,427.20, 1,484,140.80 and 934,314.80 is: 1,401,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,427.20 : 1,484,140.80 = 934,314.80 : x
  2. Step 2: Convert to fraction form
    989,427.20/1,484,140.80 = 934,314.80/x
  3. Step 3: Cross multiply
    989,427.20x = 1,484,140.80 × 934,314.80
  4. Step 4: Simplify right side
    989,427.20x = 1,386,654,714,723.84
  5. Step 5: Solve for x
    x = 1,386,654,714,723.84/989,427.20
  6. Step 6: Final answer
    x = 1,401,472.20

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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.