Home / 1,271,428.04-1,754,562.36-690,645.89

Finding the Fourth Proportional to 1,271,428.04, 1,754,562.36 and 690,645.89

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Solution

The fourth proportional to 1,271,428.04, 1,754,562.36 and 690,645.89 is: 953,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,428.04 : 1,754,562.36 = 690,645.89 : x
  2. Step 2: Convert to fraction form
    1,271,428.04/1,754,562.36 = 690,645.89/x
  3. Step 3: Cross multiply
    1,271,428.04x = 1,754,562.36 × 690,645.89
  4. Step 4: Simplify right side
    1,271,428.04x = 1,211,781,289,659.03
  5. Step 5: Solve for x
    x = 1,211,781,289,659.03/1,271,428.04
  6. Step 6: Final answer
    x = 953,086.80

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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.