Home / 915,020.13-1,372,713.81-316,003.26

Finding the Fourth Proportional to 915,020.13, 1,372,713.81 and 316,003.26

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Solution

The fourth proportional to 915,020.13, 1,372,713.81 and 316,003.26 is: 474,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,020.13 : 1,372,713.81 = 316,003.26 : x
  2. Step 2: Convert to fraction form
    915,020.13/1,372,713.81 = 316,003.26/x
  3. Step 3: Cross multiply
    915,020.13x = 1,372,713.81 × 316,003.26
  4. Step 4: Simplify right side
    915,020.13x = 433,782,039,007.02
  5. Step 5: Solve for x
    x = 433,782,039,007.02/915,020.13
  6. Step 6: Final answer
    x = 474,068.30

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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.