Home / 1,355,717.17-1,869,187.42-992,510.47

Finding the Fourth Proportional to 1,355,717.17, 1,869,187.42 and 992,510.47

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Solution

The fourth proportional to 1,355,717.17, 1,869,187.42 and 992,510.47 is: 1,368,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,717.17 : 1,869,187.42 = 992,510.47 : x
  2. Step 2: Convert to fraction form
    1,355,717.17/1,869,187.42 = 992,510.47/x
  3. Step 3: Cross multiply
    1,355,717.17x = 1,869,187.42 × 992,510.47
  4. Step 4: Simplify right side
    1,355,717.17x = 1,855,188,084,742.29
  5. Step 5: Solve for x
    x = 1,855,188,084,742.29/1,355,717.17
  6. Step 6: Final answer
    x = 1,368,418.23

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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.