Home / 1,336,763.70-2,005,145.55-390,230.10

Finding the Fourth Proportional to 1,336,763.70, 2,005,145.55 and 390,230.10

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Solution

The fourth proportional to 1,336,763.70, 2,005,145.55 and 390,230.10 is: 585,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,763.70 : 2,005,145.55 = 390,230.10 : x
  2. Step 2: Convert to fraction form
    1,336,763.70/2,005,145.55 = 390,230.10/x
  3. Step 3: Cross multiply
    1,336,763.70x = 2,005,145.55 × 390,230.10
  4. Step 4: Simplify right side
    1,336,763.70x = 782,468,148,491.06
  5. Step 5: Solve for x
    x = 782,468,148,491.06/1,336,763.70
  6. Step 6: Final answer
    x = 585,345.15

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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.