Home / 921,156.98-1,271,724.03-615,750.66

Finding the Fourth Proportional to 921,156.98, 1,271,724.03 and 615,750.66

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Solution

The fourth proportional to 921,156.98, 1,271,724.03 and 615,750.66 is: 850,088.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,156.98 : 1,271,724.03 = 615,750.66 : x
  2. Step 2: Convert to fraction form
    921,156.98/1,271,724.03 = 615,750.66/x
  3. Step 3: Cross multiply
    921,156.98x = 1,271,724.03 × 615,750.66
  4. Step 4: Simplify right side
    921,156.98x = 783,064,910,810.36
  5. Step 5: Solve for x
    x = 783,064,910,810.36/921,156.98
  6. Step 6: Final answer
    x = 850,088.46

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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.