Home / 1,129,384.80-1,694,077.20-381,430.80

Finding the Fourth Proportional to 1,129,384.80, 1,694,077.20 and 381,430.80

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Solution

The fourth proportional to 1,129,384.80, 1,694,077.20 and 381,430.80 is: 572,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,384.80 : 1,694,077.20 = 381,430.80 : x
  2. Step 2: Convert to fraction form
    1,129,384.80/1,694,077.20 = 381,430.80/x
  3. Step 3: Cross multiply
    1,129,384.80x = 1,694,077.20 × 381,430.80
  4. Step 4: Simplify right side
    1,129,384.80x = 646,173,221,657.76
  5. Step 5: Solve for x
    x = 646,173,221,657.76/1,129,384.80
  6. Step 6: Final answer
    x = 572,146.20

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Double scale
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Similar ratio
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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.