Home / 807,521.40-1,209,969.90-760,282.20

Finding the Fourth Proportional to 807,521.40, 1,209,969.90 and 760,282.20

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Solution

The fourth proportional to 807,521.40, 1,209,969.90 and 760,282.20 is: 1,139,187.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,521.40 : 1,209,969.90 = 760,282.20 : x
  2. Step 2: Convert to fraction form
    807,521.40/1,209,969.90 = 760,282.20/x
  3. Step 3: Cross multiply
    807,521.40x = 1,209,969.90 × 760,282.20
  4. Step 4: Simplify right side
    807,521.40x = 919,918,577,505.78
  5. Step 5: Solve for x
    x = 919,918,577,505.78/807,521.40
  6. Step 6: Final answer
    x = 1,139,187.86

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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.