Home / 875,780.40-1,312,115.40-819,793.20

Finding the Fourth Proportional to 875,780.40, 1,312,115.40 and 819,793.20

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Solution

The fourth proportional to 875,780.40, 1,312,115.40 and 819,793.20 is: 1,228,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,780.40 : 1,312,115.40 = 819,793.20 : x
  2. Step 2: Convert to fraction form
    875,780.40/1,312,115.40 = 819,793.20/x
  3. Step 3: Cross multiply
    875,780.40x = 1,312,115.40 × 819,793.20
  4. Step 4: Simplify right side
    875,780.40x = 1,075,663,282,535.28
  5. Step 5: Solve for x
    x = 1,075,663,282,535.28/875,780.40
  6. Step 6: Final answer
    x = 1,228,234.02

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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.