Home / 578,055.74-865,961.46-425,976.75

Finding the Fourth Proportional to 578,055.74, 865,961.46 and 425,976.75

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Solution

The fourth proportional to 578,055.74, 865,961.46 and 425,976.75 is: 638,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,055.74 : 865,961.46 = 425,976.75 : x
  2. Step 2: Convert to fraction form
    578,055.74/865,961.46 = 425,976.75/x
  3. Step 3: Cross multiply
    578,055.74x = 865,961.46 × 425,976.75
  4. Step 4: Simplify right side
    578,055.74x = 368,879,448,356.06
  5. Step 5: Solve for x
    x = 368,879,448,356.06/578,055.74
  6. Step 6: Final answer
    x = 638,138.20

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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.