Home / 1,386,923.60-2,080,385.40-1,302,942.80

Finding the Fourth Proportional to 1,386,923.60, 2,080,385.40 and 1,302,942.80

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Solution

The fourth proportional to 1,386,923.60, 2,080,385.40 and 1,302,942.80 is: 1,954,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,923.60 : 2,080,385.40 = 1,302,942.80 : x
  2. Step 2: Convert to fraction form
    1,386,923.60/2,080,385.40 = 1,302,942.80/x
  3. Step 3: Cross multiply
    1,386,923.60x = 2,080,385.40 × 1,302,942.80
  4. Step 4: Simplify right side
    1,386,923.60x = 2,710,623,178,155.12
  5. Step 5: Solve for x
    x = 2,710,623,178,155.12/1,386,923.60
  6. Step 6: Final answer
    x = 1,954,414.20

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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.