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Finding the Fourth Proportional to 606,741.08, 909,373.80 and 429,299.24

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Solution

The fourth proportional to 606,741.08, 909,373.80 and 429,299.24 is: 643,426.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,741.08 : 909,373.80 = 429,299.24 : x
  2. Step 2: Convert to fraction form
    606,741.08/909,373.80 = 429,299.24/x
  3. Step 3: Cross multiply
    606,741.08x = 909,373.80 × 429,299.24
  4. Step 4: Simplify right side
    606,741.08x = 390,393,481,215.91
  5. Step 5: Solve for x
    x = 390,393,481,215.91/606,741.08
  6. Step 6: Final answer
    x = 643,426.82

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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.