Home / 778,216.39-1,167,360.38-238,434.01

Finding the Fourth Proportional to 778,216.39, 1,167,360.38 and 238,434.01

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Solution

The fourth proportional to 778,216.39, 1,167,360.38 and 238,434.01 is: 357,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,216.39 : 1,167,360.38 = 238,434.01 : x
  2. Step 2: Convert to fraction form
    778,216.39/1,167,360.38 = 238,434.01/x
  3. Step 3: Cross multiply
    778,216.39x = 1,167,360.38 × 238,434.01
  4. Step 4: Simplify right side
    778,216.39x = 278,338,416,518.52
  5. Step 5: Solve for x
    x = 278,338,416,518.52/778,216.39
  6. Step 6: Final answer
    x = 357,661.98

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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.