Home / 788,645.57-1,088,331.39-426,069.21

Finding the Fourth Proportional to 788,645.57, 1,088,331.39 and 426,069.21

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Solution

The fourth proportional to 788,645.57, 1,088,331.39 and 426,069.21 is: 587,975.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,645.57 : 1,088,331.39 = 426,069.21 : x
  2. Step 2: Convert to fraction form
    788,645.57/1,088,331.39 = 426,069.21/x
  3. Step 3: Cross multiply
    788,645.57x = 1,088,331.39 × 426,069.21
  4. Step 4: Simplify right side
    788,645.57x = 463,704,499,636.75
  5. Step 5: Solve for x
    x = 463,704,499,636.75/788,645.57
  6. Step 6: Final answer
    x = 587,975.79

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.