Home / 1,390,407.40-2,085,611.10-548,849.80

Finding the Fourth Proportional to 1,390,407.40, 2,085,611.10 and 548,849.80

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Solution

The fourth proportional to 1,390,407.40, 2,085,611.10 and 548,849.80 is: 823,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,407.40 : 2,085,611.10 = 548,849.80 : x
  2. Step 2: Convert to fraction form
    1,390,407.40/2,085,611.10 = 548,849.80/x
  3. Step 3: Cross multiply
    1,390,407.40x = 2,085,611.10 × 548,849.80
  4. Step 4: Simplify right side
    1,390,407.40x = 1,144,687,235,112.78
  5. Step 5: Solve for x
    x = 1,144,687,235,112.78/1,390,407.40
  6. Step 6: Final answer
    x = 823,274.70

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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.