Home / 1,587,346.74-2,190,554.96-862,208.55

Finding the Fourth Proportional to 1,587,346.74, 2,190,554.96 and 862,208.55

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Solution

The fourth proportional to 1,587,346.74, 2,190,554.96 and 862,208.55 is: 1,189,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,346.74 : 2,190,554.96 = 862,208.55 : x
  2. Step 2: Convert to fraction form
    1,587,346.74/2,190,554.96 = 862,208.55/x
  3. Step 3: Cross multiply
    1,587,346.74x = 2,190,554.96 × 862,208.55
  4. Step 4: Simplify right side
    1,587,346.74x = 1,888,715,211,445.87
  5. Step 5: Solve for x
    x = 1,888,715,211,445.87/1,587,346.74
  6. Step 6: Final answer
    x = 1,189,856.74

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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.