Home / 989,245.70-1,482,871.64-389,974.90

Finding the Fourth Proportional to 989,245.70, 1,482,871.64 and 389,974.90

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Solution

The fourth proportional to 989,245.70, 1,482,871.64 and 389,974.90 is: 584,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,245.70 : 1,482,871.64 = 389,974.90 : x
  2. Step 2: Convert to fraction form
    989,245.70/1,482,871.64 = 389,974.90/x
  3. Step 3: Cross multiply
    989,245.70x = 1,482,871.64 × 389,974.90
  4. Step 4: Simplify right side
    989,245.70x = 578,282,719,521.84
  5. Step 5: Solve for x
    x = 578,282,719,521.84/989,245.70
  6. Step 6: Final answer
    x = 584,569.35

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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.