Home / 1,336,744.70-2,005,117.05-390,211.10

Finding the Fourth Proportional to 1,336,744.70, 2,005,117.05 and 390,211.10

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Solution

The fourth proportional to 1,336,744.70, 2,005,117.05 and 390,211.10 is: 585,316.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,744.70 : 2,005,117.05 = 390,211.10 : x
  2. Step 2: Convert to fraction form
    1,336,744.70/2,005,117.05 = 390,211.10/x
  3. Step 3: Cross multiply
    1,336,744.70x = 2,005,117.05 × 390,211.10
  4. Step 4: Simplify right side
    1,336,744.70x = 782,418,929,709.26
  5. Step 5: Solve for x
    x = 782,418,929,709.26/1,336,744.70
  6. Step 6: Final answer
    x = 585,316.65

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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.