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Finding the Fourth Proportional to 407,775.76, 562,730.56 and 228,927.76

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Solution

The fourth proportional to 407,775.76, 562,730.56 and 228,927.76 is: 315,920.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,775.76 : 562,730.56 = 228,927.76 : x
  2. Step 2: Convert to fraction form
    407,775.76/562,730.56 = 228,927.76/x
  3. Step 3: Cross multiply
    407,775.76x = 562,730.56 × 228,927.76
  4. Step 4: Simplify right side
    407,775.76x = 128,824,646,584.35
  5. Step 5: Solve for x
    x = 128,824,646,584.35/407,775.76
  6. Step 6: Final answer
    x = 315,920.32

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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.