Home / 989,389.80-1,482,094.50-749,913.30

Finding the Fourth Proportional to 989,389.80, 1,482,094.50 and 749,913.30

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Solution

The fourth proportional to 989,389.80, 1,482,094.50 and 749,913.30 is: 1,123,361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,389.80 : 1,482,094.50 = 749,913.30 : x
  2. Step 2: Convert to fraction form
    989,389.80/1,482,094.50 = 749,913.30/x
  3. Step 3: Cross multiply
    989,389.80x = 1,482,094.50 × 749,913.30
  4. Step 4: Simplify right side
    989,389.80x = 1,111,442,377,406.85
  5. Step 5: Solve for x
    x = 1,111,442,377,406.85/989,389.80
  6. Step 6: Final answer
    x = 1,123,361.47

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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.