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Finding the Fourth Proportional to 557,544.60, 769,427.33 and 315,827.11

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Solution

The fourth proportional to 557,544.60, 769,427.33 and 315,827.11 is: 435,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,544.60 : 769,427.33 = 315,827.11 : x
  2. Step 2: Convert to fraction form
    557,544.60/769,427.33 = 315,827.11/x
  3. Step 3: Cross multiply
    557,544.60x = 769,427.33 × 315,827.11
  4. Step 4: Simplify right side
    557,544.60x = 243,006,009,988.92
  5. Step 5: Solve for x
    x = 243,006,009,988.92/557,544.60
  6. Step 6: Final answer
    x = 435,850.35

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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.