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Finding the Fourth Proportional to 475,856.31, 656,838.74 and 425,410.94

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Solution

The fourth proportional to 475,856.31, 656,838.74 and 425,410.94 is: 587,207.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,856.31 : 656,838.74 = 425,410.94 : x
  2. Step 2: Convert to fraction form
    475,856.31/656,838.74 = 425,410.94/x
  3. Step 3: Cross multiply
    475,856.31x = 656,838.74 × 425,410.94
  4. Step 4: Simplify right side
    475,856.31x = 279,426,380,400.57
  5. Step 5: Solve for x
    x = 279,426,380,400.57/475,856.31
  6. Step 6: Final answer
    x = 587,207.47

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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.