Home / 771,731.12-1,157,868.84-239,386.16

Finding the Fourth Proportional to 771,731.12, 1,157,868.84 and 239,386.16

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Solution

The fourth proportional to 771,731.12, 1,157,868.84 and 239,386.16 is: 359,163.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,731.12 : 1,157,868.84 = 239,386.16 : x
  2. Step 2: Convert to fraction form
    771,731.12/1,157,868.84 = 239,386.16/x
  3. Step 3: Cross multiply
    771,731.12x = 1,157,868.84 × 239,386.16
  4. Step 4: Simplify right side
    771,731.12x = 277,177,775,391.25
  5. Step 5: Solve for x
    x = 277,177,775,391.25/771,731.12
  6. Step 6: Final answer
    x = 359,163.66

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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.