Home / 558,037.39-770,088.38-309,676.85

Finding the Fourth Proportional to 558,037.39, 770,088.38 and 309,676.85

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Solution

The fourth proportional to 558,037.39, 770,088.38 and 309,676.85 is: 427,352.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,037.39 : 770,088.38 = 309,676.85 : x
  2. Step 2: Convert to fraction form
    558,037.39/770,088.38 = 309,676.85/x
  3. Step 3: Cross multiply
    558,037.39x = 770,088.38 × 309,676.85
  4. Step 4: Simplify right side
    558,037.39x = 238,478,539,498.62
  5. Step 5: Solve for x
    x = 238,478,539,498.62/558,037.39
  6. Step 6: Final answer
    x = 427,352.26

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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.