Home / 1,587,487.41-2,190,792.72-889,781

Finding the Fourth Proportional to 1,587,487.41, 2,190,792.72 and 889,781

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Solution

The fourth proportional to 1,587,487.41, 2,190,792.72 and 889,781 is: 1,227,931.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,487.41 : 2,190,792.72 = 889,781 : x
  2. Step 2: Convert to fraction form
    1,587,487.41/2,190,792.72 = 889,781/x
  3. Step 3: Cross multiply
    1,587,487.41x = 2,190,792.72 × 889,781
  4. Step 4: Simplify right side
    1,587,487.41x = 1,949,325,737,194.32
  5. Step 5: Solve for x
    x = 1,949,325,737,194.32/1,587,487.41
  6. Step 6: Final answer
    x = 1,227,931.46

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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.