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Finding the Fourth Proportional to 522,191, 720,624.30 and 295,851.80

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Solution

The fourth proportional to 522,191, 720,624.30 and 295,851.80 is: 408,275.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,191 : 720,624.30 = 295,851.80 : x
  2. Step 2: Convert to fraction form
    522,191/720,624.30 = 295,851.80/x
  3. Step 3: Cross multiply
    522,191x = 720,624.30 × 295,851.80
  4. Step 4: Simplify right side
    522,191x = 213,197,996,278.74
  5. Step 5: Solve for x
    x = 213,197,996,278.74/522,191
  6. Step 6: Final answer
    x = 408,275.89

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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.