Home / 1,587,266.74-2,190,444.02-862,128.64

Finding the Fourth Proportional to 1,587,266.74, 2,190,444.02 and 862,128.64

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Solution

The fourth proportional to 1,587,266.74, 2,190,444.02 and 862,128.64 is: 1,189,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,266.74 : 2,190,444.02 = 862,128.64 : x
  2. Step 2: Convert to fraction form
    1,587,266.74/2,190,444.02 = 862,128.64/x
  3. Step 3: Cross multiply
    1,587,266.74x = 2,190,444.02 × 862,128.64
  4. Step 4: Simplify right side
    1,587,266.74x = 1,888,444,523,958.73
  5. Step 5: Solve for x
    x = 1,888,444,523,958.73/1,587,266.74
  6. Step 6: Final answer
    x = 1,189,746.17

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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.