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Finding the Fourth Proportional to 395,342.58, 592,392.90 and 305,605.23

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Solution

The fourth proportional to 395,342.58, 592,392.90 and 305,605.23 is: 457,927.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,342.58 : 592,392.90 = 305,605.23 : x
  2. Step 2: Convert to fraction form
    395,342.58/592,392.90 = 305,605.23/x
  3. Step 3: Cross multiply
    395,342.58x = 592,392.90 × 305,605.23
  4. Step 4: Simplify right side
    395,342.58x = 181,038,368,454.87
  5. Step 5: Solve for x
    x = 181,038,368,454.87/395,342.58
  6. Step 6: Final answer
    x = 457,927.83

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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.