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Finding the Fourth Proportional to 553,668.30, 830,502.45 and 301,069.80

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Solution

The fourth proportional to 553,668.30, 830,502.45 and 301,069.80 is: 451,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,668.30 : 830,502.45 = 301,069.80 : x
  2. Step 2: Convert to fraction form
    553,668.30/830,502.45 = 301,069.80/x
  3. Step 3: Cross multiply
    553,668.30x = 830,502.45 × 301,069.80
  4. Step 4: Simplify right side
    553,668.30x = 250,039,206,521.01
  5. Step 5: Solve for x
    x = 250,039,206,521.01/553,668.30
  6. Step 6: Final answer
    x = 451,604.70

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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.