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Finding the Fourth Proportional to 581,505.80, 802,360.35 and 339,741.68

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Solution

The fourth proportional to 581,505.80, 802,360.35 and 339,741.68 is: 468,774.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,505.80 : 802,360.35 = 339,741.68 : x
  2. Step 2: Convert to fraction form
    581,505.80/802,360.35 = 339,741.68/x
  3. Step 3: Cross multiply
    581,505.80x = 802,360.35 × 339,741.68
  4. Step 4: Simplify right side
    581,505.80x = 272,595,249,262.59
  5. Step 5: Solve for x
    x = 272,595,249,262.59/581,505.80
  6. Step 6: Final answer
    x = 468,774.78

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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.