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Finding the Fourth Proportional to 532,968.90, 798,416.55 and 321,980.10

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Solution

The fourth proportional to 532,968.90, 798,416.55 and 321,980.10 is: 482,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,968.90 : 798,416.55 = 321,980.10 : x
  2. Step 2: Convert to fraction form
    532,968.90/798,416.55 = 321,980.10/x
  3. Step 3: Cross multiply
    532,968.90x = 798,416.55 × 321,980.10
  4. Step 4: Simplify right side
    532,968.90x = 257,074,240,610.66
  5. Step 5: Solve for x
    x = 257,074,240,610.66/532,968.90
  6. Step 6: Final answer
    x = 482,343.79

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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.