Home / 988,021.60-1,363,469.96-535,312.60

Finding the Fourth Proportional to 988,021.60, 1,363,469.96 and 535,312.60

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Solution

The fourth proportional to 988,021.60, 1,363,469.96 and 535,312.60 is: 738,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,021.60 : 1,363,469.96 = 535,312.60 : x
  2. Step 2: Convert to fraction form
    988,021.60/1,363,469.96 = 535,312.60/x
  3. Step 3: Cross multiply
    988,021.60x = 1,363,469.96 × 535,312.60
  4. Step 4: Simplify right side
    988,021.60x = 729,882,649,309.50
  5. Step 5: Solve for x
    x = 729,882,649,309.50/988,021.60
  6. Step 6: Final answer
    x = 738,731.47

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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.