Home / 890,258.89-1,227,879.15-766,290.91

Finding the Fourth Proportional to 890,258.89, 1,227,879.15 and 766,290.91

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Solution

The fourth proportional to 890,258.89, 1,227,879.15 and 766,290.91 is: 1,056,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,258.89 : 1,227,879.15 = 766,290.91 : x
  2. Step 2: Convert to fraction form
    890,258.89/1,227,879.15 = 766,290.91/x
  3. Step 3: Cross multiply
    890,258.89x = 1,227,879.15 × 766,290.91
  4. Step 4: Simplify right side
    890,258.89x = 940,912,631,223.53
  5. Step 5: Solve for x
    x = 940,912,631,223.53/890,258.89
  6. Step 6: Final answer
    x = 1,056,897.77

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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.