Home / 991,679.04-1,368,510.66-538,970.04

Finding the Fourth Proportional to 991,679.04, 1,368,510.66 and 538,970.04

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Solution

The fourth proportional to 991,679.04, 1,368,510.66 and 538,970.04 is: 743,775.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,679.04 : 1,368,510.66 = 538,970.04 : x
  2. Step 2: Convert to fraction form
    991,679.04/1,368,510.66 = 538,970.04/x
  3. Step 3: Cross multiply
    991,679.04x = 1,368,510.66 × 538,970.04
  4. Step 4: Simplify right side
    991,679.04x = 737,586,245,160.63
  5. Step 5: Solve for x
    x = 737,586,245,160.63/991,679.04
  6. Step 6: Final answer
    x = 743,775.17

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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.