Home / 692,043.50-1,038,215.70-212,273.20

Finding the Fourth Proportional to 692,043.50, 1,038,215.70 and 212,273.20

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Solution

The fourth proportional to 692,043.50, 1,038,215.70 and 212,273.20 is: 318,455.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,043.50 : 1,038,215.70 = 212,273.20 : x
  2. Step 2: Convert to fraction form
    692,043.50/1,038,215.70 = 212,273.20/x
  3. Step 3: Cross multiply
    692,043.50x = 1,038,215.70 × 212,273.20
  4. Step 4: Simplify right side
    692,043.50x = 220,385,368,929.24
  5. Step 5: Solve for x
    x = 220,385,368,929.24/692,043.50
  6. Step 6: Final answer
    x = 318,455.95

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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.