Home / 915,062.40-1,372,776.66-316,045.26

Finding the Fourth Proportional to 915,062.40, 1,372,776.66 and 316,045.26

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Solution

The fourth proportional to 915,062.40, 1,372,776.66 and 316,045.26 is: 474,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,062.40 : 1,372,776.66 = 316,045.26 : x
  2. Step 2: Convert to fraction form
    915,062.40/1,372,776.66 = 316,045.26/x
  3. Step 3: Cross multiply
    915,062.40x = 1,372,776.66 × 316,045.26
  4. Step 4: Simplify right side
    915,062.40x = 433,859,556,431.63
  5. Step 5: Solve for x
    x = 433,859,556,431.63/915,062.40
  6. Step 6: Final answer
    x = 474,131.12

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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.