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Finding the Fourth Proportional to 554,206.71, 764,804.82 and 299,557.91

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Solution

The fourth proportional to 554,206.71, 764,804.82 and 299,557.91 is: 413,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,206.71 : 764,804.82 = 299,557.91 : x
  2. Step 2: Convert to fraction form
    554,206.71/764,804.82 = 299,557.91/x
  3. Step 3: Cross multiply
    554,206.71x = 764,804.82 × 299,557.91
  4. Step 4: Simplify right side
    554,206.71x = 229,103,329,613.10
  5. Step 5: Solve for x
    x = 229,103,329,613.10/554,206.71
  6. Step 6: Final answer
    x = 413,389.67

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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.