Home / 755,040.78-1,041,955.68-415,509.06

Finding the Fourth Proportional to 755,040.78, 1,041,955.68 and 415,509.06

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Solution

The fourth proportional to 755,040.78, 1,041,955.68 and 415,509.06 is: 573,402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,040.78 : 1,041,955.68 = 415,509.06 : x
  2. Step 2: Convert to fraction form
    755,040.78/1,041,955.68 = 415,509.06/x
  3. Step 3: Cross multiply
    755,040.78x = 1,041,955.68 × 415,509.06
  4. Step 4: Simplify right side
    755,040.78x = 432,942,025,158.46
  5. Step 5: Solve for x
    x = 432,942,025,158.46/755,040.78
  6. Step 6: Final answer
    x = 573,402.17

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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.