Home / 1,553,377.80-2,330,066.70-431,446.80

Finding the Fourth Proportional to 1,553,377.80, 2,330,066.70 and 431,446.80

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Solution

The fourth proportional to 1,553,377.80, 2,330,066.70 and 431,446.80 is: 647,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,377.80 : 2,330,066.70 = 431,446.80 : x
  2. Step 2: Convert to fraction form
    1,553,377.80/2,330,066.70 = 431,446.80/x
  3. Step 3: Cross multiply
    1,553,377.80x = 2,330,066.70 × 431,446.80
  4. Step 4: Simplify right side
    1,553,377.80x = 1,005,299,821,501.56
  5. Step 5: Solve for x
    x = 1,005,299,821,501.56/1,553,377.80
  6. Step 6: Final answer
    x = 647,170.20

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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.