Home / 1,377,348.70-2,066,023.05-430,815.10

Finding the Fourth Proportional to 1,377,348.70, 2,066,023.05 and 430,815.10

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Solution

The fourth proportional to 1,377,348.70, 2,066,023.05 and 430,815.10 is: 646,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,348.70 : 2,066,023.05 = 430,815.10 : x
  2. Step 2: Convert to fraction form
    1,377,348.70/2,066,023.05 = 430,815.10/x
  3. Step 3: Cross multiply
    1,377,348.70x = 2,066,023.05 × 430,815.10
  4. Step 4: Simplify right side
    1,377,348.70x = 890,073,926,888.06
  5. Step 5: Solve for x
    x = 890,073,926,888.06/1,377,348.70
  6. Step 6: Final answer
    x = 646,222.65

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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.