Home / 1,255,203.20-1,881,638.40-876,123.20

Finding the Fourth Proportional to 1,255,203.20, 1,881,638.40 and 876,123.20

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Solution

The fourth proportional to 1,255,203.20, 1,881,638.40 and 876,123.20 is: 1,313,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,203.20 : 1,881,638.40 = 876,123.20 : x
  2. Step 2: Convert to fraction form
    1,255,203.20/1,881,638.40 = 876,123.20/x
  3. Step 3: Cross multiply
    1,255,203.20x = 1,881,638.40 × 876,123.20
  4. Step 4: Simplify right side
    1,255,203.20x = 1,648,547,056,250.88
  5. Step 5: Solve for x
    x = 1,648,547,056,250.88/1,255,203.20
  6. Step 6: Final answer
    x = 1,313,370.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.