Home / 890,965.97-1,333,256.35-771,435.29

Finding the Fourth Proportional to 890,965.97, 1,333,256.35 and 771,435.29

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Solution

The fourth proportional to 890,965.97, 1,333,256.35 and 771,435.29 is: 1,154,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,965.97 : 1,333,256.35 = 771,435.29 : x
  2. Step 2: Convert to fraction form
    890,965.97/1,333,256.35 = 771,435.29/x
  3. Step 3: Cross multiply
    890,965.97x = 1,333,256.35 × 771,435.29
  4. Step 4: Simplify right side
    890,965.97x = 1,028,520,999,006.59
  5. Step 5: Solve for x
    x = 1,028,520,999,006.59/890,965.97
  6. Step 6: Final answer
    x = 1,154,388.65

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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.