Home / 1,105,428.80-1,654,206.60-766,881.20

Finding the Fourth Proportional to 1,105,428.80, 1,654,206.60 and 766,881.20

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Solution

The fourth proportional to 1,105,428.80, 1,654,206.60 and 766,881.20 is: 1,147,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,428.80 : 1,654,206.60 = 766,881.20 : x
  2. Step 2: Convert to fraction form
    1,105,428.80/1,654,206.60 = 766,881.20/x
  3. Step 3: Cross multiply
    1,105,428.80x = 1,654,206.60 × 766,881.20
  4. Step 4: Simplify right side
    1,105,428.80x = 1,268,579,942,455.92
  5. Step 5: Solve for x
    x = 1,268,579,942,455.92/1,105,428.80
  6. Step 6: Final answer
    x = 1,147,590.82

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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.