Home / 758,165.46-1,137,641.78-309,215.70

Finding the Fourth Proportional to 758,165.46, 1,137,641.78 and 309,215.70

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Solution

The fourth proportional to 758,165.46, 1,137,641.78 and 309,215.70 is: 463,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,165.46 : 1,137,641.78 = 309,215.70 : x
  2. Step 2: Convert to fraction form
    758,165.46/1,137,641.78 = 309,215.70/x
  3. Step 3: Cross multiply
    758,165.46x = 1,137,641.78 × 309,215.70
  4. Step 4: Simplify right side
    758,165.46x = 351,776,699,351.95
  5. Step 5: Solve for x
    x = 351,776,699,351.95/758,165.46
  6. Step 6: Final answer
    x = 463,984.07

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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.