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Finding the Fourth Proportional to 545,972.40, 818,083.80 and 345,934.80

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Solution

The fourth proportional to 545,972.40, 818,083.80 and 345,934.80 is: 518,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,972.40 : 818,083.80 = 345,934.80 : x
  2. Step 2: Convert to fraction form
    545,972.40/818,083.80 = 345,934.80/x
  3. Step 3: Cross multiply
    545,972.40x = 818,083.80 × 345,934.80
  4. Step 4: Simplify right side
    545,972.40x = 283,003,655,736.24
  5. Step 5: Solve for x
    x = 283,003,655,736.24/545,972.40
  6. Step 6: Final answer
    x = 518,347.92

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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.