Home / 1,390,367.80-2,085,551.70-1,366,748.20

Finding the Fourth Proportional to 1,390,367.80, 2,085,551.70 and 1,366,748.20

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Solution

The fourth proportional to 1,390,367.80, 2,085,551.70 and 1,366,748.20 is: 2,050,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,367.80 : 2,085,551.70 = 1,366,748.20 : x
  2. Step 2: Convert to fraction form
    1,390,367.80/2,085,551.70 = 1,366,748.20/x
  3. Step 3: Cross multiply
    1,390,367.80x = 2,085,551.70 × 1,366,748.20
  4. Step 4: Simplify right side
    1,390,367.80x = 2,850,424,031,981.94
  5. Step 5: Solve for x
    x = 2,850,424,031,981.94/1,390,367.80
  6. Step 6: Final answer
    x = 2,050,122.30

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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.