Home / 910,433.80-1,365,521.10-311,422.60

Finding the Fourth Proportional to 910,433.80, 1,365,521.10 and 311,422.60

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Solution

The fourth proportional to 910,433.80, 1,365,521.10 and 311,422.60 is: 467,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,433.80 : 1,365,521.10 = 311,422.60 : x
  2. Step 2: Convert to fraction form
    910,433.80/1,365,521.10 = 311,422.60/x
  3. Step 3: Cross multiply
    910,433.80x = 1,365,521.10 × 311,422.60
  4. Step 4: Simplify right side
    910,433.80x = 425,254,131,316.86
  5. Step 5: Solve for x
    x = 425,254,131,316.86/910,433.80
  6. Step 6: Final answer
    x = 467,089.57

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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.