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Finding the Fourth Proportional to 551,686.67, 761,667.26 and 437,426.86

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Solution

The fourth proportional to 551,686.67, 761,667.26 and 437,426.86 is: 603,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,686.67 : 761,667.26 = 437,426.86 : x
  2. Step 2: Convert to fraction form
    551,686.67/761,667.26 = 437,426.86/x
  3. Step 3: Cross multiply
    551,686.67x = 761,667.26 × 437,426.86
  4. Step 4: Simplify right side
    551,686.67x = 333,173,717,096.00
  5. Step 5: Solve for x
    x = 333,173,717,096.00/551,686.67
  6. Step 6: Final answer
    x = 603,918.37

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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.