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Finding the Fourth Proportional to 620,062.92, 855,620.73 and 348,160.50

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Solution

The fourth proportional to 620,062.92, 855,620.73 and 348,160.50 is: 480,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,062.92 : 855,620.73 = 348,160.50 : x
  2. Step 2: Convert to fraction form
    620,062.92/855,620.73 = 348,160.50/x
  3. Step 3: Cross multiply
    620,062.92x = 855,620.73 × 348,160.50
  4. Step 4: Simplify right side
    620,062.92x = 297,893,341,167.17
  5. Step 5: Solve for x
    x = 297,893,341,167.17/620,062.92
  6. Step 6: Final answer
    x = 480,424.38

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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.