Home / 837,678.32-1,256,511.72-339,035.12

Finding the Fourth Proportional to 837,678.32, 1,256,511.72 and 339,035.12

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Solution

The fourth proportional to 837,678.32, 1,256,511.72 and 339,035.12 is: 508,550.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,678.32 : 1,256,511.72 = 339,035.12 : x
  2. Step 2: Convert to fraction form
    837,678.32/1,256,511.72 = 339,035.12/x
  3. Step 3: Cross multiply
    837,678.32x = 1,256,511.72 × 339,035.12
  4. Step 4: Simplify right side
    837,678.32x = 426,001,601,771.61
  5. Step 5: Solve for x
    x = 426,001,601,771.61/837,678.32
  6. Step 6: Final answer
    x = 508,550.35

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Double scale
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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.