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Finding the Fourth Proportional to 606,606.08, 909,171.20 and 429,164.24

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Solution

The fourth proportional to 606,606.08, 909,171.20 and 429,164.24 is: 643,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,606.08 : 909,171.20 = 429,164.24 : x
  2. Step 2: Convert to fraction form
    606,606.08/909,171.20 = 429,164.24/x
  3. Step 3: Cross multiply
    606,606.08x = 909,171.20 × 429,164.24
  4. Step 4: Simplify right side
    606,606.08x = 390,183,767,077.89
  5. Step 5: Solve for x
    x = 390,183,767,077.89/606,606.08
  6. Step 6: Final answer
    x = 643,224.29

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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.