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Finding the Fourth Proportional to 888,735.78, 1,226,425.05 and 506,885.58

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Solution

The fourth proportional to 888,735.78, 1,226,425.05 and 506,885.58 is: 699,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,735.78 : 1,226,425.05 = 506,885.58 : x
  2. Step 2: Convert to fraction form
    888,735.78/1,226,425.05 = 506,885.58/x
  3. Step 3: Cross multiply
    888,735.78x = 1,226,425.05 × 506,885.58
  4. Step 4: Simplify right side
    888,735.78x = 621,657,172,795.78
  5. Step 5: Solve for x
    x = 621,657,172,795.78/888,735.78
  6. Step 6: Final answer
    x = 699,484.80

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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.