Home / 1,272,816.12-1,909,223.38-374,265.24

Finding the Fourth Proportional to 1,272,816.12, 1,909,223.38 and 374,265.24

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Solution

The fourth proportional to 1,272,816.12, 1,909,223.38 and 374,265.24 is: 561,397.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,816.12 : 1,909,223.38 = 374,265.24 : x
  2. Step 2: Convert to fraction form
    1,272,816.12/1,909,223.38 = 374,265.24/x
  3. Step 3: Cross multiply
    1,272,816.12x = 1,909,223.38 × 374,265.24
  4. Step 4: Simplify right side
    1,272,816.12x = 714,555,946,529.31
  5. Step 5: Solve for x
    x = 714,555,946,529.31/1,272,816.12
  6. Step 6: Final answer
    x = 561,397.62

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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.