Home / 768,421.89-1,152,804.20-235,996.65

Finding the Fourth Proportional to 768,421.89, 1,152,804.20 and 235,996.65

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Solution

The fourth proportional to 768,421.89, 1,152,804.20 and 235,996.65 is: 354,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,421.89 : 1,152,804.20 = 235,996.65 : x
  2. Step 2: Convert to fraction form
    768,421.89/1,152,804.20 = 235,996.65/x
  3. Step 3: Cross multiply
    768,421.89x = 1,152,804.20 × 235,996.65
  4. Step 4: Simplify right side
    768,421.89x = 272,057,928,125.95
  5. Step 5: Solve for x
    x = 272,057,928,125.95/768,421.89
  6. Step 6: Final answer
    x = 354,047.60

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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.