Home / 772,852.20-1,157,723.10-520,909.80

Finding the Fourth Proportional to 772,852.20, 1,157,723.10 and 520,909.80

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Solution

The fourth proportional to 772,852.20, 1,157,723.10 and 520,909.80 is: 780,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,852.20 : 1,157,723.10 = 520,909.80 : x
  2. Step 2: Convert to fraction form
    772,852.20/1,157,723.10 = 520,909.80/x
  3. Step 3: Cross multiply
    772,852.20x = 1,157,723.10 × 520,909.80
  4. Step 4: Simplify right side
    772,852.20x = 603,069,308,476.38
  5. Step 5: Solve for x
    x = 603,069,308,476.38/772,852.20
  6. Step 6: Final answer
    x = 780,316.48

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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.