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Finding the Fourth Proportional to 610,810.64, 842,958.55 and 352,698.47

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Solution

The fourth proportional to 610,810.64, 842,958.55 and 352,698.47 is: 486,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,810.64 : 842,958.55 = 352,698.47 : x
  2. Step 2: Convert to fraction form
    610,810.64/842,958.55 = 352,698.47/x
  3. Step 3: Cross multiply
    610,810.64x = 842,958.55 × 352,698.47
  4. Step 4: Simplify right side
    610,810.64x = 297,310,190,858.42
  5. Step 5: Solve for x
    x = 297,310,190,858.42/610,810.64
  6. Step 6: Final answer
    x = 486,746.91

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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.