Home / 877,640.20-1,316,460.30-728,049.40

Finding the Fourth Proportional to 877,640.20, 1,316,460.30 and 728,049.40

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Solution

The fourth proportional to 877,640.20, 1,316,460.30 and 728,049.40 is: 1,092,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,640.20 : 1,316,460.30 = 728,049.40 : x
  2. Step 2: Convert to fraction form
    877,640.20/1,316,460.30 = 728,049.40/x
  3. Step 3: Cross multiply
    877,640.20x = 1,316,460.30 × 728,049.40
  4. Step 4: Simplify right side
    877,640.20x = 958,448,131,538.82
  5. Step 5: Solve for x
    x = 958,448,131,538.82/877,640.20
  6. Step 6: Final answer
    x = 1,092,074.10

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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.