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Finding the Fourth Proportional to 539,278.39, 744,580.40 and 335,420.93

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Solution

The fourth proportional to 539,278.39, 744,580.40 and 335,420.93 is: 463,114.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,278.39 : 744,580.40 = 335,420.93 : x
  2. Step 2: Convert to fraction form
    539,278.39/744,580.40 = 335,420.93/x
  3. Step 3: Cross multiply
    539,278.39x = 744,580.40 × 335,420.93
  4. Step 4: Simplify right side
    539,278.39x = 249,747,852,298.86
  5. Step 5: Solve for x
    x = 249,747,852,298.86/539,278.39
  6. Step 6: Final answer
    x = 463,114.89

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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.