Home / 352,212.60-528,318.90-313,721.40

Finding the Fourth Proportional to 352,212.60, 528,318.90 and 313,721.40

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Solution

The fourth proportional to 352,212.60, 528,318.90 and 313,721.40 is: 470,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,212.60 : 528,318.90 = 313,721.40 : x
  2. Step 2: Convert to fraction form
    352,212.60/528,318.90 = 313,721.40/x
  3. Step 3: Cross multiply
    352,212.60x = 528,318.90 × 313,721.40
  4. Step 4: Simplify right side
    352,212.60x = 165,744,944,954.46
  5. Step 5: Solve for x
    x = 165,744,944,954.46/352,212.60
  6. Step 6: Final answer
    x = 470,582.10

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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.