Home / 1,290,886.64-1,781,554.20-739,675.34

Finding the Fourth Proportional to 1,290,886.64, 1,781,554.20 and 739,675.34

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Solution

The fourth proportional to 1,290,886.64, 1,781,554.20 and 739,675.34 is: 1,020,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,886.64 : 1,781,554.20 = 739,675.34 : x
  2. Step 2: Convert to fraction form
    1,290,886.64/1,781,554.20 = 739,675.34/x
  3. Step 3: Cross multiply
    1,290,886.64x = 1,781,554.20 × 739,675.34
  4. Step 4: Simplify right side
    1,290,886.64x = 1,317,771,708,613.43
  5. Step 5: Solve for x
    x = 1,317,771,708,613.43/1,290,886.64
  6. Step 6: Final answer
    x = 1,020,826.82

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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.