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Finding the Fourth Proportional to 500,897.44, 690,835.80 and 440,339.68

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Solution

The fourth proportional to 500,897.44, 690,835.80 and 440,339.68 is: 607,314.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,897.44 : 690,835.80 = 440,339.68 : x
  2. Step 2: Convert to fraction form
    500,897.44/690,835.80 = 440,339.68/x
  3. Step 3: Cross multiply
    500,897.44x = 690,835.80 × 440,339.68
  4. Step 4: Simplify right side
    500,897.44x = 304,202,415,104.54
  5. Step 5: Solve for x
    x = 304,202,415,104.54/500,897.44
  6. Step 6: Final answer
    x = 607,314.77

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1.5x scale

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.