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Finding the Fourth Proportional to 520,853.37, 718,566.03 and 339,501.66

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Solution

The fourth proportional to 520,853.37, 718,566.03 and 339,501.66 is: 468,374.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,853.37 : 718,566.03 = 339,501.66 : x
  2. Step 2: Convert to fraction form
    520,853.37/718,566.03 = 339,501.66/x
  3. Step 3: Cross multiply
    520,853.37x = 718,566.03 × 339,501.66
  4. Step 4: Simplify right side
    520,853.37x = 243,954,360,004.61
  5. Step 5: Solve for x
    x = 243,954,360,004.61/520,853.37
  6. Step 6: Final answer
    x = 468,374.35

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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.