Home / 1,587,425.78-2,190,688.36-862,315

Finding the Fourth Proportional to 1,587,425.78, 2,190,688.36 and 862,315

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Solution

The fourth proportional to 1,587,425.78, 2,190,688.36 and 862,315 is: 1,190,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,425.78 : 2,190,688.36 = 862,315 : x
  2. Step 2: Convert to fraction form
    1,587,425.78/2,190,688.36 = 862,315/x
  3. Step 3: Cross multiply
    1,587,425.78x = 2,190,688.36 × 862,315
  4. Step 4: Simplify right side
    1,587,425.78x = 1,889,063,433,153.40
  5. Step 5: Solve for x
    x = 1,889,063,433,153.40/1,587,425.78
  6. Step 6: Final answer
    x = 1,190,016.85

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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.