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Finding the Fourth Proportional to 922,506.80, 1,383,630.60 and 291,484.40

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Solution

The fourth proportional to 922,506.80, 1,383,630.60 and 291,484.40 is: 437,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,506.80 : 1,383,630.60 = 291,484.40 : x
  2. Step 2: Convert to fraction form
    922,506.80/1,383,630.60 = 291,484.40/x
  3. Step 3: Cross multiply
    922,506.80x = 1,383,630.60 × 291,484.40
  4. Step 4: Simplify right side
    922,506.80x = 403,306,735,262.64
  5. Step 5: Solve for x
    x = 403,306,735,262.64/922,506.80
  6. Step 6: Final answer
    x = 437,185.65

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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.