Home / 1,126,282.83-1,554,381.78-642,920.64

Finding the Fourth Proportional to 1,126,282.83, 1,554,381.78 and 642,920.64

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Solution

The fourth proportional to 1,126,282.83, 1,554,381.78 and 642,920.64 is: 887,294.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,282.83 : 1,554,381.78 = 642,920.64 : x
  2. Step 2: Convert to fraction form
    1,126,282.83/1,554,381.78 = 642,920.64/x
  3. Step 3: Cross multiply
    1,126,282.83x = 1,554,381.78 × 642,920.64
  4. Step 4: Simplify right side
    1,126,282.83x = 999,344,128,801.94
  5. Step 5: Solve for x
    x = 999,344,128,801.94/1,126,282.83
  6. Step 6: Final answer
    x = 887,294.12

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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.