Home / 778,217.40-1,167,361.88-238,435.02

Finding the Fourth Proportional to 778,217.40, 1,167,361.88 and 238,435.02

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Solution

The fourth proportional to 778,217.40, 1,167,361.88 and 238,435.02 is: 357,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,217.40 : 1,167,361.88 = 238,435.02 : x
  2. Step 2: Convert to fraction form
    778,217.40/1,167,361.88 = 238,435.02/x
  3. Step 3: Cross multiply
    778,217.40x = 1,167,361.88 × 238,435.02
  4. Step 4: Simplify right side
    778,217.40x = 278,339,953,205.04
  5. Step 5: Solve for x
    x = 278,339,953,205.04/778,217.40
  6. Step 6: Final answer
    x = 357,663.49

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1.5x scale

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.