Home / 905,045.87-1,357,567.61-231,127.65

Finding the Fourth Proportional to 905,045.87, 1,357,567.61 and 231,127.65

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Solution

The fourth proportional to 905,045.87, 1,357,567.61 and 231,127.65 is: 346,691.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,045.87 : 1,357,567.61 = 231,127.65 : x
  2. Step 2: Convert to fraction form
    905,045.87/1,357,567.61 = 231,127.65/x
  3. Step 3: Cross multiply
    905,045.87x = 1,357,567.61 × 231,127.65
  4. Step 4: Simplify right side
    905,045.87x = 313,771,410,259.78
  5. Step 5: Solve for x
    x = 313,771,410,259.78/905,045.87
  6. Step 6: Final answer
    x = 346,691.17

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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.