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Finding the Fourth Proportional to 553,060.71, 829,606.86 and 300,462.21

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Solution

The fourth proportional to 553,060.71, 829,606.86 and 300,462.21 is: 450,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,060.71 : 829,606.86 = 300,462.21 : x
  2. Step 2: Convert to fraction form
    553,060.71/829,606.86 = 300,462.21/x
  3. Step 3: Cross multiply
    553,060.71x = 829,606.86 × 300,462.21
  4. Step 4: Simplify right side
    553,060.71x = 249,265,510,586.76
  5. Step 5: Solve for x
    x = 249,265,510,586.76/553,060.71
  6. Step 6: Final answer
    x = 450,701.90

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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.