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Finding the Fourth Proportional to 561,645.20, 842,467.80 and 561,645.20

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Solution

The fourth proportional to 561,645.20, 842,467.80 and 561,645.20 is: 842,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,645.20 : 842,467.80 = 561,645.20 : x
  2. Step 2: Convert to fraction form
    561,645.20/842,467.80 = 561,645.20/x
  3. Step 3: Cross multiply
    561,645.20x = 842,467.80 × 561,645.20
  4. Step 4: Simplify right side
    561,645.20x = 473,167,996,024.56
  5. Step 5: Solve for x
    x = 473,167,996,024.56/561,645.20
  6. Step 6: Final answer
    x = 842,467.80

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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.