Home / 905,061.44-1,357,887.06-431,685.20

Finding the Fourth Proportional to 905,061.44, 1,357,887.06 and 431,685.20

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Solution

The fourth proportional to 905,061.44, 1,357,887.06 and 431,685.20 is: 647,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,061.44 : 1,357,887.06 = 431,685.20 : x
  2. Step 2: Convert to fraction form
    905,061.44/1,357,887.06 = 431,685.20/x
  3. Step 3: Cross multiply
    905,061.44x = 1,357,887.06 × 431,685.20
  4. Step 4: Simplify right side
    905,061.44x = 586,179,747,073.51
  5. Step 5: Solve for x
    x = 586,179,747,073.51/905,061.44
  6. Step 6: Final answer
    x = 647,668.46

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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.