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Finding the Fourth Proportional to 406,266.72, 560,555.28 and 261,148.32

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Solution

The fourth proportional to 406,266.72, 560,555.28 and 261,148.32 is: 360,325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,266.72 : 560,555.28 = 261,148.32 : x
  2. Step 2: Convert to fraction form
    406,266.72/560,555.28 = 261,148.32/x
  3. Step 3: Cross multiply
    406,266.72x = 560,555.28 × 261,148.32
  4. Step 4: Simplify right side
    406,266.72x = 146,388,069,639.13
  5. Step 5: Solve for x
    x = 146,388,069,639.13/406,266.72
  6. Step 6: Final answer
    x = 360,325.03

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1.5x scale

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.