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Finding the Fourth Proportional to 540,498.75, 808,739.28 and 339,881.19

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Solution

The fourth proportional to 540,498.75, 808,739.28 and 339,881.19 is: 508,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,498.75 : 808,739.28 = 339,881.19 : x
  2. Step 2: Convert to fraction form
    540,498.75/808,739.28 = 339,881.19/x
  3. Step 3: Cross multiply
    540,498.75x = 808,739.28 × 339,881.19
  4. Step 4: Simplify right side
    540,498.75x = 274,875,268,886.14
  5. Step 5: Solve for x
    x = 274,875,268,886.14/540,498.75
  6. Step 6: Final answer
    x = 508,558.57

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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.