Home / 1,290,916.26-1,781,454.56-710,126.87

Finding the Fourth Proportional to 1,290,916.26, 1,781,454.56 and 710,126.87

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Solution

The fourth proportional to 1,290,916.26, 1,781,454.56 and 710,126.87 is: 979,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,916.26 : 1,781,454.56 = 710,126.87 : x
  2. Step 2: Convert to fraction form
    1,290,916.26/1,781,454.56 = 710,126.87/x
  3. Step 3: Cross multiply
    1,290,916.26x = 1,781,454.56 × 710,126.87
  4. Step 4: Simplify right side
    1,290,916.26x = 1,265,058,738,282.12
  5. Step 5: Solve for x
    x = 1,265,058,738,282.12/1,290,916.26
  6. Step 6: Final answer
    x = 979,969.64

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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.