Home / 1,301,778.09-1,952,290.15-390,923.84

Finding the Fourth Proportional to 1,301,778.09, 1,952,290.15 and 390,923.84

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Solution

The fourth proportional to 1,301,778.09, 1,952,290.15 and 390,923.84 is: 586,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,778.09 : 1,952,290.15 = 390,923.84 : x
  2. Step 2: Convert to fraction form
    1,301,778.09/1,952,290.15 = 390,923.84/x
  3. Step 3: Cross multiply
    1,301,778.09x = 1,952,290.15 × 390,923.84
  4. Step 4: Simplify right side
    1,301,778.09x = 763,196,766,135.59
  5. Step 5: Solve for x
    x = 763,196,766,135.59/1,301,778.09
  6. Step 6: Final answer
    x = 586,272.55

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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.