Home / 509,242-764,031.48-272,531.92

Finding the Fourth Proportional to 509,242, 764,031.48 and 272,531.92

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Solution

The fourth proportional to 509,242, 764,031.48 and 272,531.92 is: 408,888.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,242 : 764,031.48 = 272,531.92 : x
  2. Step 2: Convert to fraction form
    509,242/764,031.48 = 272,531.92/x
  3. Step 3: Cross multiply
    509,242x = 764,031.48 × 272,531.92
  4. Step 4: Simplify right side
    509,242x = 208,222,966,184.84
  5. Step 5: Solve for x
    x = 208,222,966,184.84/509,242
  6. Step 6: Final answer
    x = 408,888.05

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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.