Home / 1,287,636.48-1,776,854.88-714,676.80

Finding the Fourth Proportional to 1,287,636.48, 1,776,854.88 and 714,676.80

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Solution

The fourth proportional to 1,287,636.48, 1,776,854.88 and 714,676.80 is: 986,207.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,636.48 : 1,776,854.88 = 714,676.80 : x
  2. Step 2: Convert to fraction form
    1,287,636.48/1,776,854.88 = 714,676.80/x
  3. Step 3: Cross multiply
    1,287,636.48x = 1,776,854.88 × 714,676.80
  4. Step 4: Simplify right side
    1,287,636.48x = 1,269,876,959,702.78
  5. Step 5: Solve for x
    x = 1,269,876,959,702.78/1,287,636.48
  6. Step 6: Final answer
    x = 986,207.66

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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.