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Finding the Fourth Proportional to 520,853.48, 718,773.91 and 294,507.08

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Solution

The fourth proportional to 520,853.48, 718,773.91 and 294,507.08 is: 406,417.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,853.48 : 718,773.91 = 294,507.08 : x
  2. Step 2: Convert to fraction form
    520,853.48/718,773.91 = 294,507.08/x
  3. Step 3: Cross multiply
    520,853.48x = 718,773.91 × 294,507.08
  4. Step 4: Simplify right side
    520,853.48x = 211,684,001,084.15
  5. Step 5: Solve for x
    x = 211,684,001,084.15/520,853.48
  6. Step 6: Final answer
    x = 406,417.57

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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.