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Finding the Fourth Proportional to 604,709.70, 907,064.55 and 205,455.30

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Solution

The fourth proportional to 604,709.70, 907,064.55 and 205,455.30 is: 308,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,709.70 : 907,064.55 = 205,455.30 : x
  2. Step 2: Convert to fraction form
    604,709.70/907,064.55 = 205,455.30/x
  3. Step 3: Cross multiply
    604,709.70x = 907,064.55 × 205,455.30
  4. Step 4: Simplify right side
    604,709.70x = 186,361,219,239.62
  5. Step 5: Solve for x
    x = 186,361,219,239.62/604,709.70
  6. Step 6: Final answer
    x = 308,182.95

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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.