Home / 713,752.20-1,070,628.30-545,790.60

Finding the Fourth Proportional to 713,752.20, 1,070,628.30 and 545,790.60

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Solution

The fourth proportional to 713,752.20, 1,070,628.30 and 545,790.60 is: 818,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,752.20 : 1,070,628.30 = 545,790.60 : x
  2. Step 2: Convert to fraction form
    713,752.20/1,070,628.30 = 545,790.60/x
  3. Step 3: Cross multiply
    713,752.20x = 1,070,628.30 × 545,790.60
  4. Step 4: Simplify right side
    713,752.20x = 584,338,862,233.98
  5. Step 5: Solve for x
    x = 584,338,862,233.98/713,752.20
  6. Step 6: Final answer
    x = 818,685.90

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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.