Home / 874,845.75-1,207,287.14-472,437.75

Finding the Fourth Proportional to 874,845.75, 1,207,287.14 and 472,437.75

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Solution

The fourth proportional to 874,845.75, 1,207,287.14 and 472,437.75 is: 651,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,845.75 : 1,207,287.14 = 472,437.75 : x
  2. Step 2: Convert to fraction form
    874,845.75/1,207,287.14 = 472,437.75/x
  3. Step 3: Cross multiply
    874,845.75x = 1,207,287.14 × 472,437.75
  4. Step 4: Simplify right side
    874,845.75x = 570,368,017,663.35
  5. Step 5: Solve for x
    x = 570,368,017,663.35/874,845.75
  6. Step 6: Final answer
    x = 651,964.10

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1.5x scale

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.