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Finding the Fourth Proportional to 606,432.60, 909,065.70 and 471,421.80

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Solution

The fourth proportional to 606,432.60, 909,065.70 and 471,421.80 is: 706,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,432.60 : 909,065.70 = 471,421.80 : x
  2. Step 2: Convert to fraction form
    606,432.60/909,065.70 = 471,421.80/x
  3. Step 3: Cross multiply
    606,432.60x = 909,065.70 × 471,421.80
  4. Step 4: Simplify right side
    606,432.60x = 428,553,388,612.26
  5. Step 5: Solve for x
    x = 428,553,388,612.26/606,432.60
  6. Step 6: Final answer
    x = 706,679.34

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1.5x scale

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.