Home / 987,445.71-1,362,289.30-573,913.78

Finding the Fourth Proportional to 987,445.71, 1,362,289.30 and 573,913.78

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Solution

The fourth proportional to 987,445.71, 1,362,289.30 and 573,913.78 is: 791,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,445.71 : 1,362,289.30 = 573,913.78 : x
  2. Step 2: Convert to fraction form
    987,445.71/1,362,289.30 = 573,913.78/x
  3. Step 3: Cross multiply
    987,445.71x = 1,362,289.30 × 573,913.78
  4. Step 4: Simplify right side
    987,445.71x = 781,836,601,616.55
  5. Step 5: Solve for x
    x = 781,836,601,616.55/987,445.71
  6. Step 6: Final answer
    x = 791,776.80

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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.