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Finding the Fourth Proportional to 531,763.20, 797,644.80 and 310,579.20

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Solution

The fourth proportional to 531,763.20, 797,644.80 and 310,579.20 is: 465,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,763.20 : 797,644.80 = 310,579.20 : x
  2. Step 2: Convert to fraction form
    531,763.20/797,644.80 = 310,579.20/x
  3. Step 3: Cross multiply
    531,763.20x = 797,644.80 × 310,579.20
  4. Step 4: Simplify right side
    531,763.20x = 247,731,883,868.16
  5. Step 5: Solve for x
    x = 247,731,883,868.16/531,763.20
  6. Step 6: Final answer
    x = 465,868.80

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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.