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Finding the Fourth Proportional to 561,841.90, 842,762.85 and 372,885.10

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Solution

The fourth proportional to 561,841.90, 842,762.85 and 372,885.10 is: 559,327.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,841.90 : 842,762.85 = 372,885.10 : x
  2. Step 2: Convert to fraction form
    561,841.90/842,762.85 = 372,885.10/x
  3. Step 3: Cross multiply
    561,841.90x = 842,762.85 × 372,885.10
  4. Step 4: Simplify right side
    561,841.90x = 314,253,709,598.54
  5. Step 5: Solve for x
    x = 314,253,709,598.54/561,841.90
  6. Step 6: Final answer
    x = 559,327.65

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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.