Home / 638,125.55-880,619.07-351,655.91

Finding the Fourth Proportional to 638,125.55, 880,619.07 and 351,655.91

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Solution

The fourth proportional to 638,125.55, 880,619.07 and 351,655.91 is: 485,288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,125.55 : 880,619.07 = 351,655.91 : x
  2. Step 2: Convert to fraction form
    638,125.55/880,619.07 = 351,655.91/x
  3. Step 3: Cross multiply
    638,125.55x = 880,619.07 × 351,655.91
  4. Step 4: Simplify right side
    638,125.55x = 309,674,894,262.83
  5. Step 5: Solve for x
    x = 309,674,894,262.83/638,125.55
  6. Step 6: Final answer
    x = 485,288.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.