Home / 890,826.18-1,229,900.70-618,806.58

Finding the Fourth Proportional to 890,826.18, 1,229,900.70 and 618,806.58

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Solution

The fourth proportional to 890,826.18, 1,229,900.70 and 618,806.58 is: 854,342.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,826.18 : 1,229,900.70 = 618,806.58 : x
  2. Step 2: Convert to fraction form
    890,826.18/1,229,900.70 = 618,806.58/x
  3. Step 3: Cross multiply
    890,826.18x = 1,229,900.70 × 618,806.58
  4. Step 4: Simplify right side
    890,826.18x = 761,070,645,906.61
  5. Step 5: Solve for x
    x = 761,070,645,906.61/890,826.18
  6. Step 6: Final answer
    x = 854,342.48

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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.