Home / 987,587.02-1,362,865.86-552,003.78

Finding the Fourth Proportional to 987,587.02, 1,362,865.86 and 552,003.78

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Solution

The fourth proportional to 987,587.02, 1,362,865.86 and 552,003.78 is: 761,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,587.02 : 1,362,865.86 = 552,003.78 : x
  2. Step 2: Convert to fraction form
    987,587.02/1,362,865.86 = 552,003.78/x
  3. Step 3: Cross multiply
    987,587.02x = 1,362,865.86 × 552,003.78
  4. Step 4: Simplify right side
    987,587.02x = 752,307,106,352.95
  5. Step 5: Solve for x
    x = 752,307,106,352.95/987,587.02
  6. Step 6: Final answer
    x = 761,762.85

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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.