Home / 1,440,392.90-1,987,117.74-867,100.93

Finding the Fourth Proportional to 1,440,392.90, 1,987,117.74 and 867,100.93

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Solution

The fourth proportional to 1,440,392.90, 1,987,117.74 and 867,100.93 is: 1,196,223.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,392.90 : 1,987,117.74 = 867,100.93 : x
  2. Step 2: Convert to fraction form
    1,440,392.90/1,987,117.74 = 867,100.93/x
  3. Step 3: Cross multiply
    1,440,392.90x = 1,987,117.74 × 867,100.93
  4. Step 4: Simplify right side
    1,440,392.90x = 1,723,031,635,405.70
  5. Step 5: Solve for x
    x = 1,723,031,635,405.70/1,440,392.90
  6. Step 6: Final answer
    x = 1,196,223.36

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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.