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Finding the Fourth Proportional to 608,947.80, 913,421.70 and 294,019.80

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Solution

The fourth proportional to 608,947.80, 913,421.70 and 294,019.80 is: 441,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,947.80 : 913,421.70 = 294,019.80 : x
  2. Step 2: Convert to fraction form
    608,947.80/913,421.70 = 294,019.80/x
  3. Step 3: Cross multiply
    608,947.80x = 913,421.70 × 294,019.80
  4. Step 4: Simplify right side
    608,947.80x = 268,564,065,549.66
  5. Step 5: Solve for x
    x = 268,564,065,549.66/608,947.80
  6. Step 6: Final answer
    x = 441,029.70

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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.