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Finding the Fourth Proportional to 906,340, 1,250,749.20 and 503,932

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Solution

The fourth proportional to 906,340, 1,250,749.20 and 503,932 is: 695,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,340 : 1,250,749.20 = 503,932 : x
  2. Step 2: Convert to fraction form
    906,340/1,250,749.20 = 503,932/x
  3. Step 3: Cross multiply
    906,340x = 1,250,749.20 × 503,932
  4. Step 4: Simplify right side
    906,340x = 630,292,545,854.40
  5. Step 5: Solve for x
    x = 630,292,545,854.40/906,340
  6. Step 6: Final answer
    x = 695,426.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.