Home / 712,728.80-1,069,093.20-707,813.60

Finding the Fourth Proportional to 712,728.80, 1,069,093.20 and 707,813.60

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Solution

The fourth proportional to 712,728.80, 1,069,093.20 and 707,813.60 is: 1,061,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,728.80 : 1,069,093.20 = 707,813.60 : x
  2. Step 2: Convert to fraction form
    712,728.80/1,069,093.20 = 707,813.60/x
  3. Step 3: Cross multiply
    712,728.80x = 1,069,093.20 × 707,813.60
  4. Step 4: Simplify right side
    712,728.80x = 756,718,706,627.52
  5. Step 5: Solve for x
    x = 756,718,706,627.52/712,728.80
  6. Step 6: Final answer
    x = 1,061,720.40

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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.