Home / 689,192.19-1,033,788.29-314,952.75

Finding the Fourth Proportional to 689,192.19, 1,033,788.29 and 314,952.75

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Solution

The fourth proportional to 689,192.19, 1,033,788.29 and 314,952.75 is: 472,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,192.19 : 1,033,788.29 = 314,952.75 : x
  2. Step 2: Convert to fraction form
    689,192.19/1,033,788.29 = 314,952.75/x
  3. Step 3: Cross multiply
    689,192.19x = 1,033,788.29 × 314,952.75
  4. Step 4: Simplify right side
    689,192.19x = 325,594,463,278.53
  5. Step 5: Solve for x
    x = 325,594,463,278.53/689,192.19
  6. Step 6: Final answer
    x = 472,429.13

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Double scale
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Similar ratio
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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.