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Finding the Fourth Proportional to 553,071.83, 763,184.57 and 308,048.38

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Solution

The fourth proportional to 553,071.83, 763,184.57 and 308,048.38 is: 425,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,071.83 : 763,184.57 = 308,048.38 : x
  2. Step 2: Convert to fraction form
    553,071.83/763,184.57 = 308,048.38/x
  3. Step 3: Cross multiply
    553,071.83x = 763,184.57 × 308,048.38
  4. Step 4: Simplify right side
    553,071.83x = 235,097,766,613.57
  5. Step 5: Solve for x
    x = 235,097,766,613.57/553,071.83
  6. Step 6: Final answer
    x = 425,076.37

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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.