Home / 851,008.80-1,276,513.20-768,064.80

Finding the Fourth Proportional to 851,008.80, 1,276,513.20 and 768,064.80

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Solution

The fourth proportional to 851,008.80, 1,276,513.20 and 768,064.80 is: 1,152,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,008.80 : 1,276,513.20 = 768,064.80 : x
  2. Step 2: Convert to fraction form
    851,008.80/1,276,513.20 = 768,064.80/x
  3. Step 3: Cross multiply
    851,008.80x = 1,276,513.20 × 768,064.80
  4. Step 4: Simplify right side
    851,008.80x = 980,444,855,655.36
  5. Step 5: Solve for x
    x = 980,444,855,655.36/851,008.80
  6. Step 6: Final answer
    x = 1,152,097.20

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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.