Home / 777,040.89-1,072,393.19-454,731.76

Finding the Fourth Proportional to 777,040.89, 1,072,393.19 and 454,731.76

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Solution

The fourth proportional to 777,040.89, 1,072,393.19 and 454,731.76 is: 627,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,040.89 : 1,072,393.19 = 454,731.76 : x
  2. Step 2: Convert to fraction form
    777,040.89/1,072,393.19 = 454,731.76/x
  3. Step 3: Cross multiply
    777,040.89x = 1,072,393.19 × 454,731.76
  4. Step 4: Simplify right side
    777,040.89x = 487,651,242,700.71
  5. Step 5: Solve for x
    x = 487,651,242,700.71/777,040.89
  6. Step 6: Final answer
    x = 627,574.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.