Home / 880,779.72-1,215,401.76-488,323.17

Finding the Fourth Proportional to 880,779.72, 1,215,401.76 and 488,323.17

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Solution

The fourth proportional to 880,779.72, 1,215,401.76 and 488,323.17 is: 673,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,779.72 : 1,215,401.76 = 488,323.17 : x
  2. Step 2: Convert to fraction form
    880,779.72/1,215,401.76 = 488,323.17/x
  3. Step 3: Cross multiply
    880,779.72x = 1,215,401.76 × 488,323.17
  4. Step 4: Simplify right side
    880,779.72x = 593,508,840,266.78
  5. Step 5: Solve for x
    x = 593,508,840,266.78/880,779.72
  6. Step 6: Final answer
    x = 673,844.81

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1.5x scale

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.