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Finding the Fourth Proportional to 538,513.70, 743,118.58 and 296,795.53

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Solution

The fourth proportional to 538,513.70, 743,118.58 and 296,795.53 is: 409,561.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,513.70 : 743,118.58 = 296,795.53 : x
  2. Step 2: Convert to fraction form
    538,513.70/743,118.58 = 296,795.53/x
  3. Step 3: Cross multiply
    538,513.70x = 743,118.58 × 296,795.53
  4. Step 4: Simplify right side
    538,513.70x = 220,554,272,803.95
  5. Step 5: Solve for x
    x = 220,554,272,803.95/538,513.70
  6. Step 6: Final answer
    x = 409,561.12

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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.