Home / 1,128,097.42-1,691,304.54-678,712.98

Finding the Fourth Proportional to 1,128,097.42, 1,691,304.54 and 678,712.98

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Solution

The fourth proportional to 1,128,097.42, 1,691,304.54 and 678,712.98 is: 1,017,563.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,097.42 : 1,691,304.54 = 678,712.98 : x
  2. Step 2: Convert to fraction form
    1,128,097.42/1,691,304.54 = 678,712.98/x
  3. Step 3: Cross multiply
    1,128,097.42x = 1,691,304.54 × 678,712.98
  4. Step 4: Simplify right side
    1,128,097.42x = 1,147,910,344,430.93
  5. Step 5: Solve for x
    x = 1,147,910,344,430.93/1,128,097.42
  6. Step 6: Final answer
    x = 1,017,563.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.