Home / 1,587,366.07-2,190,605.16-862,213.57

Finding the Fourth Proportional to 1,587,366.07, 2,190,605.16 and 862,213.57

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Solution

The fourth proportional to 1,587,366.07, 2,190,605.16 and 862,213.57 is: 1,189,876.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,366.07 : 2,190,605.16 = 862,213.57 : x
  2. Step 2: Convert to fraction form
    1,587,366.07/2,190,605.16 = 862,213.57/x
  3. Step 3: Cross multiply
    1,587,366.07x = 2,190,605.16 × 862,213.57
  4. Step 4: Simplify right side
    1,587,366.07x = 1,888,769,495,464.02
  5. Step 5: Solve for x
    x = 1,888,769,495,464.02/1,587,366.07
  6. Step 6: Final answer
    x = 1,189,876.44

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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.