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Finding the Fourth Proportional to 531,331.60, 797,515.80 and 265,392.40

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Solution

The fourth proportional to 531,331.60, 797,515.80 and 265,392.40 is: 398,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,331.60 : 797,515.80 = 265,392.40 : x
  2. Step 2: Convert to fraction form
    531,331.60/797,515.80 = 265,392.40/x
  3. Step 3: Cross multiply
    531,331.60x = 797,515.80 × 265,392.40
  4. Step 4: Simplify right side
    531,331.60x = 211,654,632,199.92
  5. Step 5: Solve for x
    x = 211,654,632,199.92/531,331.60
  6. Step 6: Final answer
    x = 398,347.53

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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.