Home / 692,290.18-1,038,610.64-212,542.47

Finding the Fourth Proportional to 692,290.18, 1,038,610.64 and 212,542.47

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Solution

The fourth proportional to 692,290.18, 1,038,610.64 and 212,542.47 is: 318,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,290.18 : 1,038,610.64 = 212,542.47 : x
  2. Step 2: Convert to fraction form
    692,290.18/1,038,610.64 = 212,542.47/x
  3. Step 3: Cross multiply
    692,290.18x = 1,038,610.64 × 212,542.47
  4. Step 4: Simplify right side
    692,290.18x = 220,748,869,731.17
  5. Step 5: Solve for x
    x = 220,748,869,731.17/692,290.18
  6. Step 6: Final answer
    x = 318,867.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.