Home / 878,264.01-1,211,948.21-491,111.35

Finding the Fourth Proportional to 878,264.01, 1,211,948.21 and 491,111.35

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Solution

The fourth proportional to 878,264.01, 1,211,948.21 and 491,111.35 is: 677,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,264.01 : 1,211,948.21 = 491,111.35 : x
  2. Step 2: Convert to fraction form
    878,264.01/1,211,948.21 = 491,111.35/x
  3. Step 3: Cross multiply
    878,264.01x = 1,211,948.21 × 491,111.35
  4. Step 4: Simplify right side
    878,264.01x = 595,201,519,741.09
  5. Step 5: Solve for x
    x = 595,201,519,741.09/878,264.01
  6. Step 6: Final answer
    x = 677,702.28

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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.