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Finding the Fourth Proportional to 491,986.24, 738,212.64 and 292,700.32

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Solution

The fourth proportional to 491,986.24, 738,212.64 and 292,700.32 is: 439,189.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,986.24 : 738,212.64 = 292,700.32 : x
  2. Step 2: Convert to fraction form
    491,986.24/738,212.64 = 292,700.32/x
  3. Step 3: Cross multiply
    491,986.24x = 738,212.64 × 292,700.32
  4. Step 4: Simplify right side
    491,986.24x = 216,075,075,956.05
  5. Step 5: Solve for x
    x = 216,075,075,956.05/491,986.24
  6. Step 6: Final answer
    x = 439,189.27

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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.