Home / 1,587,959.77-2,191,392.59-862,809.34

Finding the Fourth Proportional to 1,587,959.77, 2,191,392.59 and 862,809.34

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Solution

The fourth proportional to 1,587,959.77, 2,191,392.59 and 862,809.34 is: 1,190,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,959.77 : 2,191,392.59 = 862,809.34 : x
  2. Step 2: Convert to fraction form
    1,587,959.77/2,191,392.59 = 862,809.34/x
  3. Step 3: Cross multiply
    1,587,959.77x = 2,191,392.59 × 862,809.34
  4. Step 4: Simplify right side
    1,587,959.77x = 1,890,753,994,258.79
  5. Step 5: Solve for x
    x = 1,890,753,994,258.79/1,587,959.77
  6. Step 6: Final answer
    x = 1,190,681.29

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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.