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Finding the Fourth Proportional to 407,792.00, 562,557.66 and 287,000.30

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Solution

The fourth proportional to 407,792.00, 562,557.66 and 287,000.30 is: 395,922.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,792.00 : 562,557.66 = 287,000.30 : x
  2. Step 2: Convert to fraction form
    407,792.00/562,557.66 = 287,000.30/x
  3. Step 3: Cross multiply
    407,792.00x = 562,557.66 × 287,000.30
  4. Step 4: Simplify right side
    407,792.00x = 161,454,214,374.51
  5. Step 5: Solve for x
    x = 161,454,214,374.51/407,792.00
  6. Step 6: Final answer
    x = 395,922.96

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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.