Home / 713,979.42-1,069,511.13-398,604.30

Finding the Fourth Proportional to 713,979.42, 1,069,511.13 and 398,604.30

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Solution

The fourth proportional to 713,979.42, 1,069,511.13 and 398,604.30 is: 597,092.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,979.42 : 1,069,511.13 = 398,604.30 : x
  2. Step 2: Convert to fraction form
    713,979.42/1,069,511.13 = 398,604.30/x
  3. Step 3: Cross multiply
    713,979.42x = 1,069,511.13 × 398,604.30
  4. Step 4: Simplify right side
    713,979.42x = 426,311,735,315.86
  5. Step 5: Solve for x
    x = 426,311,735,315.86/713,979.42
  6. Step 6: Final answer
    x = 597,092.47

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Double scale
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Similar ratio
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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.