Home / 740,589.64-1,109,990.98-340,681.84

Finding the Fourth Proportional to 740,589.64, 1,109,990.98 and 340,681.84

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Solution

The fourth proportional to 740,589.64, 1,109,990.98 and 340,681.84 is: 510,611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,589.64 : 1,109,990.98 = 340,681.84 : x
  2. Step 2: Convert to fraction form
    740,589.64/1,109,990.98 = 340,681.84/x
  3. Step 3: Cross multiply
    740,589.64x = 1,109,990.98 × 340,681.84
  4. Step 4: Simplify right side
    740,589.64x = 378,153,769,449.80
  5. Step 5: Solve for x
    x = 378,153,769,449.80/740,589.64
  6. Step 6: Final answer
    x = 510,611.75

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1.5x scale

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.