Home / 1,377,711.81-2,065,855.75-618,904.49

Finding the Fourth Proportional to 1,377,711.81, 2,065,855.75 and 618,904.49

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Solution

The fourth proportional to 1,377,711.81, 2,065,855.75 and 618,904.49 is: 928,036.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,711.81 : 2,065,855.75 = 618,904.49 : x
  2. Step 2: Convert to fraction form
    1,377,711.81/2,065,855.75 = 618,904.49/x
  3. Step 3: Cross multiply
    1,377,711.81x = 2,065,855.75 × 618,904.49
  4. Step 4: Simplify right side
    1,377,711.81x = 1,278,567,387,490.78
  5. Step 5: Solve for x
    x = 1,278,567,387,490.78/1,377,711.81
  6. Step 6: Final answer
    x = 928,036.89

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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.