Home / 1,270,145.48-1,752,802.41-689,368.57

Finding the Fourth Proportional to 1,270,145.48, 1,752,802.41 and 689,368.57

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Solution

The fourth proportional to 1,270,145.48, 1,752,802.41 and 689,368.57 is: 951,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,145.48 : 1,752,802.41 = 689,368.57 : x
  2. Step 2: Convert to fraction form
    1,270,145.48/1,752,802.41 = 689,368.57/x
  3. Step 3: Cross multiply
    1,270,145.48x = 1,752,802.41 × 689,368.57
  4. Step 4: Simplify right side
    1,270,145.48x = 1,208,326,896,998.04
  5. Step 5: Solve for x
    x = 1,208,326,896,998.04/1,270,145.48
  6. Step 6: Final answer
    x = 951,329.53

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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.