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Finding the Fourth Proportional to 307,837.40, 429,922.60 and 307,837.40

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Solution

The fourth proportional to 307,837.40, 429,922.60 and 307,837.40 is: 429,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,837.40 : 429,922.60 = 307,837.40 : x
  2. Step 2: Convert to fraction form
    307,837.40/429,922.60 = 307,837.40/x
  3. Step 3: Cross multiply
    307,837.40x = 429,922.60 × 307,837.40
  4. Step 4: Simplify right side
    307,837.40x = 132,346,255,385.24
  5. Step 5: Solve for x
    x = 132,346,255,385.24/307,837.40
  6. Step 6: Final answer
    x = 429,922.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.