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Finding the Fourth Proportional to 606,429.20, 909,643.80 and 606,429.20

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Solution

The fourth proportional to 606,429.20, 909,643.80 and 606,429.20 is: 909,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,429.20 : 909,643.80 = 606,429.20 : x
  2. Step 2: Convert to fraction form
    606,429.20/909,643.80 = 606,429.20/x
  3. Step 3: Cross multiply
    606,429.20x = 909,643.80 × 606,429.20
  4. Step 4: Simplify right side
    606,429.20x = 551,634,561,918.96
  5. Step 5: Solve for x
    x = 551,634,561,918.96/606,429.20
  6. Step 6: Final answer
    x = 909,643.80

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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.