Home / 1,105,120.20-1,657,680.30-631,853.40

Finding the Fourth Proportional to 1,105,120.20, 1,657,680.30 and 631,853.40

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Solution

The fourth proportional to 1,105,120.20, 1,657,680.30 and 631,853.40 is: 947,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,120.20 : 1,657,680.30 = 631,853.40 : x
  2. Step 2: Convert to fraction form
    1,105,120.20/1,657,680.30 = 631,853.40/x
  3. Step 3: Cross multiply
    1,105,120.20x = 1,657,680.30 × 631,853.40
  4. Step 4: Simplify right side
    1,105,120.20x = 1,047,410,933,668.02
  5. Step 5: Solve for x
    x = 1,047,410,933,668.02/1,105,120.20
  6. Step 6: Final answer
    x = 947,780.10

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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.