Home / 1,532,838.51-2,115,215.61-921,017.07

Finding the Fourth Proportional to 1,532,838.51, 2,115,215.61 and 921,017.07

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Solution

The fourth proportional to 1,532,838.51, 2,115,215.61 and 921,017.07 is: 1,270,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532,838.51 : 2,115,215.61 = 921,017.07 : x
  2. Step 2: Convert to fraction form
    1,532,838.51/2,115,215.61 = 921,017.07/x
  3. Step 3: Cross multiply
    1,532,838.51x = 2,115,215.61 × 921,017.07
  4. Step 4: Simplify right side
    1,532,838.51x = 1,948,149,683,540.46
  5. Step 5: Solve for x
    x = 1,948,149,683,540.46/1,532,838.51
  6. Step 6: Final answer
    x = 1,270,942.55

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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.