Home / 874,523.81-1,207,144.89-512,064.20

Finding the Fourth Proportional to 874,523.81, 1,207,144.89 and 512,064.20

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Solution

The fourth proportional to 874,523.81, 1,207,144.89 and 512,064.20 is: 706,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,523.81 : 1,207,144.89 = 512,064.20 : x
  2. Step 2: Convert to fraction form
    874,523.81/1,207,144.89 = 512,064.20/x
  3. Step 3: Cross multiply
    874,523.81x = 1,207,144.89 × 512,064.20
  4. Step 4: Simplify right side
    874,523.81x = 618,135,685,399.80
  5. Step 5: Solve for x
    x = 618,135,685,399.80/874,523.81
  6. Step 6: Final answer
    x = 706,825.45

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Double scale
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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.