Home / 692,116.40-1,038,174.60-218,946.80

Finding the Fourth Proportional to 692,116.40, 1,038,174.60 and 218,946.80

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Solution

The fourth proportional to 692,116.40, 1,038,174.60 and 218,946.80 is: 328,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,116.40 : 1,038,174.60 = 218,946.80 : x
  2. Step 2: Convert to fraction form
    692,116.40/1,038,174.60 = 218,946.80/x
  3. Step 3: Cross multiply
    692,116.40x = 1,038,174.60 × 218,946.80
  4. Step 4: Simplify right side
    692,116.40x = 227,305,006,511.28
  5. Step 5: Solve for x
    x = 227,305,006,511.28/692,116.40
  6. Step 6: Final answer
    x = 328,420.20

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Similar ratio
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1.5x scale

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.