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Finding the Fourth Proportional to 346,963.82, 478,545.84 and 298,647.92

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Solution

The fourth proportional to 346,963.82, 478,545.84 and 298,647.92 is: 411,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,963.82 : 478,545.84 = 298,647.92 : x
  2. Step 2: Convert to fraction form
    346,963.82/478,545.84 = 298,647.92/x
  3. Step 3: Cross multiply
    346,963.82x = 478,545.84 × 298,647.92
  4. Step 4: Simplify right side
    346,963.82x = 142,916,719,740.65
  5. Step 5: Solve for x
    x = 142,916,719,740.65/346,963.82
  6. Step 6: Final answer
    x = 411,906.69

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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.