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Finding the Fourth Proportional to 406,506.06, 560,999.25 and 245,358.90

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Solution

The fourth proportional to 406,506.06, 560,999.25 and 245,358.90 is: 338,607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,506.06 : 560,999.25 = 245,358.90 : x
  2. Step 2: Convert to fraction form
    406,506.06/560,999.25 = 245,358.90/x
  3. Step 3: Cross multiply
    406,506.06x = 560,999.25 × 245,358.90
  4. Step 4: Simplify right side
    406,506.06x = 137,646,158,880.83
  5. Step 5: Solve for x
    x = 137,646,158,880.83/406,506.06
  6. Step 6: Final answer
    x = 338,607.89

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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.