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Finding the Fourth Proportional to 608,740.36, 913,235.08 and 209,329.24

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Solution

The fourth proportional to 608,740.36, 913,235.08 and 209,329.24 is: 314,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,740.36 : 913,235.08 = 209,329.24 : x
  2. Step 2: Convert to fraction form
    608,740.36/913,235.08 = 209,329.24/x
  3. Step 3: Cross multiply
    608,740.36x = 913,235.08 × 209,329.24
  4. Step 4: Simplify right side
    608,740.36x = 191,166,805,237.74
  5. Step 5: Solve for x
    x = 191,166,805,237.74/608,740.36
  6. Step 6: Final answer
    x = 314,036.69

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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.