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Finding the Fourth Proportional to 346,572.96, 518,676.60 and 290,476.44

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Solution

The fourth proportional to 346,572.96, 518,676.60 and 290,476.44 is: 434,723.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,572.96 : 518,676.60 = 290,476.44 : x
  2. Step 2: Convert to fraction form
    346,572.96/518,676.60 = 290,476.44/x
  3. Step 3: Cross multiply
    346,572.96x = 518,676.60 × 290,476.44
  4. Step 4: Simplify right side
    346,572.96x = 150,663,332,279.30
  5. Step 5: Solve for x
    x = 150,663,332,279.30/346,572.96
  6. Step 6: Final answer
    x = 434,723.28

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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.