Home / 890,811.04-1,229,369.52-528,449.44

Finding the Fourth Proportional to 890,811.04, 1,229,369.52 and 528,449.44

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Solution

The fourth proportional to 890,811.04, 1,229,369.52 and 528,449.44 is: 729,290.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,811.04 : 1,229,369.52 = 528,449.44 : x
  2. Step 2: Convert to fraction form
    890,811.04/1,229,369.52 = 528,449.44/x
  3. Step 3: Cross multiply
    890,811.04x = 1,229,369.52 × 528,449.44
  4. Step 4: Simplify right side
    890,811.04x = 649,659,634,397.07
  5. Step 5: Solve for x
    x = 649,659,634,397.07/890,811.04
  6. Step 6: Final answer
    x = 729,290.06

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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.