Home / 890,257.89-1,227,877.77-766,289.91

Finding the Fourth Proportional to 890,257.89, 1,227,877.77 and 766,289.91

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Solution

The fourth proportional to 890,257.89, 1,227,877.77 and 766,289.91 is: 1,056,896.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,257.89 : 1,227,877.77 = 766,289.91 : x
  2. Step 2: Convert to fraction form
    890,257.89/1,227,877.77 = 766,289.91/x
  3. Step 3: Cross multiply
    890,257.89x = 1,227,877.77 × 766,289.91
  4. Step 4: Simplify right side
    890,257.89x = 940,910,345,864.30
  5. Step 5: Solve for x
    x = 940,910,345,864.30/890,257.89
  6. Step 6: Final answer
    x = 1,056,896.39

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1.5x scale

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.