Home / 845,555.30-1,263,690.20-618,329.66

Finding the Fourth Proportional to 845,555.30, 1,263,690.20 and 618,329.66

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Solution

The fourth proportional to 845,555.30, 1,263,690.20 and 618,329.66 is: 924,099.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,555.30 : 1,263,690.20 = 618,329.66 : x
  2. Step 2: Convert to fraction form
    845,555.30/1,263,690.20 = 618,329.66/x
  3. Step 3: Cross multiply
    845,555.30x = 1,263,690.20 × 618,329.66
  4. Step 4: Simplify right side
    845,555.30x = 781,377,131,711.33
  5. Step 5: Solve for x
    x = 781,377,131,711.33/845,555.30
  6. Step 6: Final answer
    x = 924,099.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.