Home / 693,312.90-1,040,115.15-393,548.10

Finding the Fourth Proportional to 693,312.90, 1,040,115.15 and 393,548.10

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Solution

The fourth proportional to 693,312.90, 1,040,115.15 and 393,548.10 is: 590,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,312.90 : 1,040,115.15 = 393,548.10 : x
  2. Step 2: Convert to fraction form
    693,312.90/1,040,115.15 = 393,548.10/x
  3. Step 3: Cross multiply
    693,312.90x = 1,040,115.15 × 393,548.10
  4. Step 4: Simplify right side
    693,312.90x = 409,335,341,063.72
  5. Step 5: Solve for x
    x = 409,335,341,063.72/693,312.90
  6. Step 6: Final answer
    x = 590,404.91

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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.