Home / 692,870.68-1,039,393.50-219,386.80

Finding the Fourth Proportional to 692,870.68, 1,039,393.50 and 219,386.80

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Solution

The fourth proportional to 692,870.68, 1,039,393.50 and 219,386.80 is: 329,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,870.68 : 1,039,393.50 = 219,386.80 : x
  2. Step 2: Convert to fraction form
    692,870.68/1,039,393.50 = 219,386.80/x
  3. Step 3: Cross multiply
    692,870.68x = 1,039,393.50 × 219,386.80
  4. Step 4: Simplify right side
    692,870.68x = 228,029,213,905.80
  5. Step 5: Solve for x
    x = 228,029,213,905.80/692,870.68
  6. Step 6: Final answer
    x = 329,107.90

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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.