Home / 1,371,133.32-2,056,035.36-687,726.60

Finding the Fourth Proportional to 1,371,133.32, 2,056,035.36 and 687,726.60

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Solution

The fourth proportional to 1,371,133.32, 2,056,035.36 and 687,726.60 is: 1,031,256.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,133.32 : 2,056,035.36 = 687,726.60 : x
  2. Step 2: Convert to fraction form
    1,371,133.32/2,056,035.36 = 687,726.60/x
  3. Step 3: Cross multiply
    1,371,133.32x = 2,056,035.36 × 687,726.60
  4. Step 4: Simplify right side
    1,371,133.32x = 1,413,990,207,612.58
  5. Step 5: Solve for x
    x = 1,413,990,207,612.58/1,371,133.32
  6. Step 6: Final answer
    x = 1,031,256.54

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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.