Home / 891,672.40-1,230,507.80-509,707.44

Finding the Fourth Proportional to 891,672.40, 1,230,507.80 and 509,707.44

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Solution

The fourth proportional to 891,672.40, 1,230,507.80 and 509,707.44 is: 703,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,672.40 : 1,230,507.80 = 509,707.44 : x
  2. Step 2: Convert to fraction form
    891,672.40/1,230,507.80 = 509,707.44/x
  3. Step 3: Cross multiply
    891,672.40x = 1,230,507.80 × 509,707.44
  4. Step 4: Simplify right side
    891,672.40x = 627,198,980,638.03
  5. Step 5: Solve for x
    x = 627,198,980,638.03/891,672.40
  6. Step 6: Final answer
    x = 703,396.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.