Home / 840,031.35-1,260,051.57-208,945.16

Finding the Fourth Proportional to 840,031.35, 1,260,051.57 and 208,945.16

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Solution

The fourth proportional to 840,031.35, 1,260,051.57 and 208,945.16 is: 313,418.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,031.35 : 1,260,051.57 = 208,945.16 : x
  2. Step 2: Convert to fraction form
    840,031.35/1,260,051.57 = 208,945.16/x
  3. Step 3: Cross multiply
    840,031.35x = 1,260,051.57 × 208,945.16
  4. Step 4: Simplify right side
    840,031.35x = 263,281,676,901.90
  5. Step 5: Solve for x
    x = 263,281,676,901.90/840,031.35
  6. Step 6: Final answer
    x = 313,418.87

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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.