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Finding the Fourth Proportional to 556,886.28, 768,502.65 and 302,237.67

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Solution

The fourth proportional to 556,886.28, 768,502.65 and 302,237.67 is: 417,087.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,886.28 : 768,502.65 = 302,237.67 : x
  2. Step 2: Convert to fraction form
    556,886.28/768,502.65 = 302,237.67/x
  3. Step 3: Cross multiply
    556,886.28x = 768,502.65 × 302,237.67
  4. Step 4: Simplify right side
    556,886.28x = 232,270,450,324.83
  5. Step 5: Solve for x
    x = 232,270,450,324.83/556,886.28
  6. Step 6: Final answer
    x = 417,087.76

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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.