Home / 1,112,005.80-1,668,008.70-313,276.95

Finding the Fourth Proportional to 1,112,005.80, 1,668,008.70 and 313,276.95

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Solution

The fourth proportional to 1,112,005.80, 1,668,008.70 and 313,276.95 is: 469,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,005.80 : 1,668,008.70 = 313,276.95 : x
  2. Step 2: Convert to fraction form
    1,112,005.80/1,668,008.70 = 313,276.95/x
  3. Step 3: Cross multiply
    1,112,005.80x = 1,668,008.70 × 313,276.95
  4. Step 4: Simplify right side
    1,112,005.80x = 522,548,678,109.47
  5. Step 5: Solve for x
    x = 522,548,678,109.47/1,112,005.80
  6. Step 6: Final answer
    x = 469,915.43

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Double scale
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Similar ratio
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1.5x scale

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.