Home / 1,395,287.80-2,092,931.70-1,371,668.20

Finding the Fourth Proportional to 1,395,287.80, 2,092,931.70 and 1,371,668.20

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Solution

The fourth proportional to 1,395,287.80, 2,092,931.70 and 1,371,668.20 is: 2,057,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,287.80 : 2,092,931.70 = 1,371,668.20 : x
  2. Step 2: Convert to fraction form
    1,395,287.80/2,092,931.70 = 1,371,668.20/x
  3. Step 3: Cross multiply
    1,395,287.80x = 2,092,931.70 × 1,371,668.20
  4. Step 4: Simplify right side
    1,395,287.80x = 2,870,807,857,661.94
  5. Step 5: Solve for x
    x = 2,870,807,857,661.94/1,395,287.80
  6. Step 6: Final answer
    x = 2,057,502.30

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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.