Home / 1,008,031.60-1,512,314.70-439,168.60

Finding the Fourth Proportional to 1,008,031.60, 1,512,314.70 and 439,168.60

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Solution

The fourth proportional to 1,008,031.60, 1,512,314.70 and 439,168.60 is: 658,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,031.60 : 1,512,314.70 = 439,168.60 : x
  2. Step 2: Convert to fraction form
    1,008,031.60/1,512,314.70 = 439,168.60/x
  3. Step 3: Cross multiply
    1,008,031.60x = 1,512,314.70 × 439,168.60
  4. Step 4: Simplify right side
    1,008,031.60x = 664,161,129,558.42
  5. Step 5: Solve for x
    x = 664,161,129,558.42/1,008,031.60
  6. Step 6: Final answer
    x = 658,869.35

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Double scale
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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.