Home / 816,877.80-1,225,535.40-728,741.70

Finding the Fourth Proportional to 816,877.80, 1,225,535.40 and 728,741.70

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Solution

The fourth proportional to 816,877.80, 1,225,535.40 and 728,741.70 is: 1,093,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,877.80 : 1,225,535.40 = 728,741.70 : x
  2. Step 2: Convert to fraction form
    816,877.80/1,225,535.40 = 728,741.70/x
  3. Step 3: Cross multiply
    816,877.80x = 1,225,535.40 × 728,741.70
  4. Step 4: Simplify right side
    816,877.80x = 893,098,750,806.18
  5. Step 5: Solve for x
    x = 893,098,750,806.18/816,877.80
  6. Step 6: Final answer
    x = 1,093,307.65

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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.