Home / 692,005.40-1,038,008.10-218,835.80

Finding the Fourth Proportional to 692,005.40, 1,038,008.10 and 218,835.80

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Solution

The fourth proportional to 692,005.40, 1,038,008.10 and 218,835.80 is: 328,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,005.40 : 1,038,008.10 = 218,835.80 : x
  2. Step 2: Convert to fraction form
    692,005.40/1,038,008.10 = 218,835.80/x
  3. Step 3: Cross multiply
    692,005.40x = 1,038,008.10 × 218,835.80
  4. Step 4: Simplify right side
    692,005.40x = 227,153,332,969.98
  5. Step 5: Solve for x
    x = 227,153,332,969.98/692,005.40
  6. Step 6: Final answer
    x = 328,253.70

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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.