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Finding the Fourth Proportional to 625,009.35, 936,265.32 and 287,587.38

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Solution

The fourth proportional to 625,009.35, 936,265.32 and 287,587.38 is: 430,806.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,009.35 : 936,265.32 = 287,587.38 : x
  2. Step 2: Convert to fraction form
    625,009.35/936,265.32 = 287,587.38/x
  3. Step 3: Cross multiply
    625,009.35x = 936,265.32 × 287,587.38
  4. Step 4: Simplify right side
    625,009.35x = 269,258,090,363.66
  5. Step 5: Solve for x
    x = 269,258,090,363.66/625,009.35
  6. Step 6: Final answer
    x = 430,806.50

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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.