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Finding the Fourth Proportional to 555,658.08, 766,807.20 and 301,015.68

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Solution

The fourth proportional to 555,658.08, 766,807.20 and 301,015.68 is: 415,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,658.08 : 766,807.20 = 301,015.68 : x
  2. Step 2: Convert to fraction form
    555,658.08/766,807.20 = 301,015.68/x
  3. Step 3: Cross multiply
    555,658.08x = 766,807.20 × 301,015.68
  4. Step 4: Simplify right side
    555,658.08x = 230,820,990,736.90
  5. Step 5: Solve for x
    x = 230,820,990,736.90/555,658.08
  6. Step 6: Final answer
    x = 415,401.12

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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.