Home / 989,257.46-1,482,889.28-389,986.65

Finding the Fourth Proportional to 989,257.46, 1,482,889.28 and 389,986.65

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Solution

The fourth proportional to 989,257.46, 1,482,889.28 and 389,986.65 is: 584,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,257.46 : 1,482,889.28 = 389,986.65 : x
  2. Step 2: Convert to fraction form
    989,257.46/1,482,889.28 = 389,986.65/x
  3. Step 3: Cross multiply
    989,257.46x = 1,482,889.28 × 389,986.65
  4. Step 4: Simplify right side
    989,257.46x = 578,307,020,678.18
  5. Step 5: Solve for x
    x = 578,307,020,678.18/989,257.46
  6. Step 6: Final answer
    x = 584,586.97

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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.