Home / 685,862.73-1,029,432.44-349,155.45

Finding the Fourth Proportional to 685,862.73, 1,029,432.44 and 349,155.45

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Solution

The fourth proportional to 685,862.73, 1,029,432.44 and 349,155.45 is: 524,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,862.73 : 1,029,432.44 = 349,155.45 : x
  2. Step 2: Convert to fraction form
    685,862.73/1,029,432.44 = 349,155.45/x
  3. Step 3: Cross multiply
    685,862.73x = 1,029,432.44 × 349,155.45
  4. Step 4: Simplify right side
    685,862.73x = 359,431,945,087.02
  5. Step 5: Solve for x
    x = 359,431,945,087.02/685,862.73
  6. Step 6: Final answer
    x = 524,058.14

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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.