Home / 725,064.78-1,000,561.58-402,795.14

Finding the Fourth Proportional to 725,064.78, 1,000,561.58 and 402,795.14

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Solution

The fourth proportional to 725,064.78, 1,000,561.58 and 402,795.14 is: 555,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,064.78 : 1,000,561.58 = 402,795.14 : x
  2. Step 2: Convert to fraction form
    725,064.78/1,000,561.58 = 402,795.14/x
  3. Step 3: Cross multiply
    725,064.78x = 1,000,561.58 × 402,795.14
  4. Step 4: Simplify right side
    725,064.78x = 403,021,341,694.72
  5. Step 5: Solve for x
    x = 403,021,341,694.72/725,064.78
  6. Step 6: Final answer
    x = 555,841.84

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.