Home / 768,287.30-1,152,421.68-199,618.07

Finding the Fourth Proportional to 768,287.30, 1,152,421.68 and 199,618.07

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Solution

The fourth proportional to 768,287.30, 1,152,421.68 and 199,618.07 is: 299,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,287.30 : 1,152,421.68 = 199,618.07 : x
  2. Step 2: Convert to fraction form
    768,287.30/1,152,421.68 = 199,618.07/x
  3. Step 3: Cross multiply
    768,287.30x = 1,152,421.68 × 199,618.07
  4. Step 4: Simplify right side
    768,287.30x = 230,044,191,587.76
  5. Step 5: Solve for x
    x = 230,044,191,587.76/768,287.30
  6. Step 6: Final answer
    x = 299,424.70

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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.