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Finding the Fourth Proportional to 349,792.48, 521,960.52 and 312,093.40

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Solution

The fourth proportional to 349,792.48, 521,960.52 and 312,093.40 is: 465,705.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,792.48 : 521,960.52 = 312,093.40 : x
  2. Step 2: Convert to fraction form
    349,792.48/521,960.52 = 312,093.40/x
  3. Step 3: Cross multiply
    349,792.48x = 521,960.52 × 312,093.40
  4. Step 4: Simplify right side
    349,792.48x = 162,900,433,352.57
  5. Step 5: Solve for x
    x = 162,900,433,352.57/349,792.48
  6. Step 6: Final answer
    x = 465,705.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.