Home / 747,175.20-1,031,100.60-407,643.48

Finding the Fourth Proportional to 747,175.20, 1,031,100.60 and 407,643.48

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Solution

The fourth proportional to 747,175.20, 1,031,100.60 and 407,643.48 is: 562,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,175.20 : 1,031,100.60 = 407,643.48 : x
  2. Step 2: Convert to fraction form
    747,175.20/1,031,100.60 = 407,643.48/x
  3. Step 3: Cross multiply
    747,175.20x = 1,031,100.60 × 407,643.48
  4. Step 4: Simplify right side
    747,175.20x = 420,321,436,814.09
  5. Step 5: Solve for x
    x = 420,321,436,814.09/747,175.20
  6. Step 6: Final answer
    x = 562,547.36

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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.