Home / 804,852.68-1,109,586.90-642,061.72

Finding the Fourth Proportional to 804,852.68, 1,109,586.90 and 642,061.72

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Solution

The fourth proportional to 804,852.68, 1,109,586.90 and 642,061.72 is: 885,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,852.68 : 1,109,586.90 = 642,061.72 : x
  2. Step 2: Convert to fraction form
    804,852.68/1,109,586.90 = 642,061.72/x
  3. Step 3: Cross multiply
    804,852.68x = 1,109,586.90 × 642,061.72
  4. Step 4: Simplify right side
    804,852.68x = 712,423,273,503.47
  5. Step 5: Solve for x
    x = 712,423,273,503.47/804,852.68
  6. Step 6: Final answer
    x = 885,159.85

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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.