Home / 1,385,759.52-2,079,328.32-778,170.24

Finding the Fourth Proportional to 1,385,759.52, 2,079,328.32 and 778,170.24

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Solution

The fourth proportional to 1,385,759.52, 2,079,328.32 and 778,170.24 is: 1,167,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,759.52 : 2,079,328.32 = 778,170.24 : x
  2. Step 2: Convert to fraction form
    1,385,759.52/2,079,328.32 = 778,170.24/x
  3. Step 3: Cross multiply
    1,385,759.52x = 2,079,328.32 × 778,170.24
  4. Step 4: Simplify right side
    1,385,759.52x = 1,618,071,417,813.20
  5. Step 5: Solve for x
    x = 1,618,071,417,813.20/1,385,759.52
  6. Step 6: Final answer
    x = 1,167,642.29

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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.