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Finding the Fourth Proportional to 608,740.61, 913,235.45 and 209,329.50

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Solution

The fourth proportional to 608,740.61, 913,235.45 and 209,329.50 is: 314,037.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,740.61 : 913,235.45 = 209,329.50 : x
  2. Step 2: Convert to fraction form
    608,740.61/913,235.45 = 209,329.50/x
  3. Step 3: Cross multiply
    608,740.61x = 913,235.45 × 209,329.50
  4. Step 4: Simplify right side
    608,740.61x = 191,167,122,508.76
  5. Step 5: Solve for x
    x = 191,167,122,508.76/608,740.61
  6. Step 6: Final answer
    x = 314,037.08

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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.