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Finding the Fourth Proportional to 540,968.64, 746,471.66 and 311,600.52

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Solution

The fourth proportional to 540,968.64, 746,471.66 and 311,600.52 is: 429,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,968.64 : 746,471.66 = 311,600.52 : x
  2. Step 2: Convert to fraction form
    540,968.64/746,471.66 = 311,600.52/x
  3. Step 3: Cross multiply
    540,968.64x = 746,471.66 × 311,600.52
  4. Step 4: Simplify right side
    540,968.64x = 232,600,957,421.26
  5. Step 5: Solve for x
    x = 232,600,957,421.26/540,968.64
  6. Step 6: Final answer
    x = 429,971.24

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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.