Home / 987,234.10-1,479,731.67-453,652.57

Finding the Fourth Proportional to 987,234.10, 1,479,731.67 and 453,652.57

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Solution

The fourth proportional to 987,234.10, 1,479,731.67 and 453,652.57 is: 679,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,234.10 : 1,479,731.67 = 453,652.57 : x
  2. Step 2: Convert to fraction form
    987,234.10/1,479,731.67 = 453,652.57/x
  3. Step 3: Cross multiply
    987,234.10x = 1,479,731.67 × 453,652.57
  4. Step 4: Simplify right side
    987,234.10x = 671,284,075,005.89
  5. Step 5: Solve for x
    x = 671,284,075,005.89/987,234.10
  6. Step 6: Final answer
    x = 679,964.43

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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.