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Finding the Fourth Proportional to 610,620.32, 842,483.76 and 395,769.44

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Solution

The fourth proportional to 610,620.32, 842,483.76 and 395,769.44 is: 546,050.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,620.32 : 842,483.76 = 395,769.44 : x
  2. Step 2: Convert to fraction form
    610,620.32/842,483.76 = 395,769.44/x
  3. Step 3: Cross multiply
    610,620.32x = 842,483.76 × 395,769.44
  4. Step 4: Simplify right side
    610,620.32x = 333,429,325,904.29
  5. Step 5: Solve for x
    x = 333,429,325,904.29/610,620.32
  6. Step 6: Final answer
    x = 546,050.16

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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.