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Finding the Fourth Proportional to 535,594.73, 739,143.81 and 320,693.72

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Solution

The fourth proportional to 535,594.73, 739,143.81 and 320,693.72 is: 442,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,594.73 : 739,143.81 = 320,693.72 : x
  2. Step 2: Convert to fraction form
    535,594.73/739,143.81 = 320,693.72/x
  3. Step 3: Cross multiply
    535,594.73x = 739,143.81 × 320,693.72
  4. Step 4: Simplify right side
    535,594.73x = 237,038,774,348.15
  5. Step 5: Solve for x
    x = 237,038,774,348.15/535,594.73
  6. Step 6: Final answer
    x = 442,571.15

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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.