Home / 1,221,750.90-1,832,626.35-771,010.20

Finding the Fourth Proportional to 1,221,750.90, 1,832,626.35 and 771,010.20

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Solution

The fourth proportional to 1,221,750.90, 1,832,626.35 and 771,010.20 is: 1,156,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,750.90 : 1,832,626.35 = 771,010.20 : x
  2. Step 2: Convert to fraction form
    1,221,750.90/1,832,626.35 = 771,010.20/x
  3. Step 3: Cross multiply
    1,221,750.90x = 1,832,626.35 × 771,010.20
  4. Step 4: Simplify right side
    1,221,750.90x = 1,412,973,608,638.77
  5. Step 5: Solve for x
    x = 1,412,973,608,638.77/1,221,750.90
  6. Step 6: Final answer
    x = 1,156,515.30

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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.