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Finding the Fourth Proportional to 1,346,587.92, 1,857,734.28 and 938,931.12

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Solution

The fourth proportional to 1,346,587.92, 1,857,734.28 and 938,931.12 is: 1,295,336.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,587.92 : 1,857,734.28 = 938,931.12 : x
  2. Step 2: Convert to fraction form
    1,346,587.92/1,857,734.28 = 938,931.12/x
  3. Step 3: Cross multiply
    1,346,587.92x = 1,857,734.28 × 938,931.12
  4. Step 4: Simplify right side
    1,346,587.92x = 1,744,284,528,182.79
  5. Step 5: Solve for x
    x = 1,744,284,528,182.79/1,346,587.92
  6. Step 6: Final answer
    x = 1,295,336.53

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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.