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Finding the Fourth Proportional to 493,289.60, 739,934.40 and 304,332.80

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Solution

The fourth proportional to 493,289.60, 739,934.40 and 304,332.80 is: 456,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,289.60 : 739,934.40 = 304,332.80 : x
  2. Step 2: Convert to fraction form
    493,289.60/739,934.40 = 304,332.80/x
  3. Step 3: Cross multiply
    493,289.60x = 739,934.40 × 304,332.80
  4. Step 4: Simplify right side
    493,289.60x = 225,186,307,768.32
  5. Step 5: Solve for x
    x = 225,186,307,768.32/493,289.60
  6. Step 6: Final answer
    x = 456,499.20

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Similar ratio
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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.