Home / 690,939.54-953,482.20-385,014.66

Finding the Fourth Proportional to 690,939.54, 953,482.20 and 385,014.66

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Solution

The fourth proportional to 690,939.54, 953,482.20 and 385,014.66 is: 531,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,939.54 : 953,482.20 = 385,014.66 : x
  2. Step 2: Convert to fraction form
    690,939.54/953,482.20 = 385,014.66/x
  3. Step 3: Cross multiply
    690,939.54x = 953,482.20 × 385,014.66
  4. Step 4: Simplify right side
    690,939.54x = 367,104,625,049.05
  5. Step 5: Solve for x
    x = 367,104,625,049.05/690,939.54
  6. Step 6: Final answer
    x = 531,312.23

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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.