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Finding the Fourth Proportional to 668,801.59, 1,001,489.70 and 368,948.90

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Solution

The fourth proportional to 668,801.59, 1,001,489.70 and 368,948.90 is: 552,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,801.59 : 1,001,489.70 = 368,948.90 : x
  2. Step 2: Convert to fraction form
    668,801.59/1,001,489.70 = 368,948.90/x
  3. Step 3: Cross multiply
    668,801.59x = 1,001,489.70 × 368,948.90
  4. Step 4: Simplify right side
    668,801.59x = 369,498,523,176.33
  5. Step 5: Solve for x
    x = 369,498,523,176.33/668,801.59
  6. Step 6: Final answer
    x = 552,478.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.