Home / 874,987.20-1,207,482.78-472,579.20

Finding the Fourth Proportional to 874,987.20, 1,207,482.78 and 472,579.20

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Solution

The fourth proportional to 874,987.20, 1,207,482.78 and 472,579.20 is: 652,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,987.20 : 1,207,482.78 = 472,579.20 : x
  2. Step 2: Convert to fraction form
    874,987.20/1,207,482.78 = 472,579.20/x
  3. Step 3: Cross multiply
    874,987.20x = 1,207,482.78 × 472,579.20
  4. Step 4: Simplify right side
    874,987.20x = 570,631,246,186.18
  5. Step 5: Solve for x
    x = 570,631,246,186.18/874,987.20
  6. Step 6: Final answer
    x = 652,159.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.