Home / 692,154.52-1,038,225.66-218,840.20

Finding the Fourth Proportional to 692,154.52, 1,038,225.66 and 218,840.20

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Solution

The fourth proportional to 692,154.52, 1,038,225.66 and 218,840.20 is: 328,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,154.52 : 1,038,225.66 = 218,840.20 : x
  2. Step 2: Convert to fraction form
    692,154.52/1,038,225.66 = 218,840.20/x
  3. Step 3: Cross multiply
    692,154.52x = 1,038,225.66 × 218,840.20
  4. Step 4: Simplify right side
    692,154.52x = 227,205,511,079.53
  5. Step 5: Solve for x
    x = 227,205,511,079.53/692,154.52
  6. Step 6: Final answer
    x = 328,258.37

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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.