Home / 692,187.80-1,038,281.70-218,910.20

Finding the Fourth Proportional to 692,187.80, 1,038,281.70 and 218,910.20

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Solution

The fourth proportional to 692,187.80, 1,038,281.70 and 218,910.20 is: 328,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,187.80 : 1,038,281.70 = 218,910.20 : x
  2. Step 2: Convert to fraction form
    692,187.80/1,038,281.70 = 218,910.20/x
  3. Step 3: Cross multiply
    692,187.80x = 1,038,281.70 × 218,910.20
  4. Step 4: Simplify right side
    692,187.80x = 227,290,454,603.34
  5. Step 5: Solve for x
    x = 227,290,454,603.34/692,187.80
  6. Step 6: Final answer
    x = 328,365.30

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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.