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Finding the Fourth Proportional to 587,627.40, 810,911.34 and 342,656.76

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Solution

The fourth proportional to 587,627.40, 810,911.34 and 342,656.76 is: 472,857.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,627.40 : 810,911.34 = 342,656.76 : x
  2. Step 2: Convert to fraction form
    587,627.40/810,911.34 = 342,656.76/x
  3. Step 3: Cross multiply
    587,627.40x = 810,911.34 × 342,656.76
  4. Step 4: Simplify right side
    587,627.40x = 277,864,252,411.66
  5. Step 5: Solve for x
    x = 277,864,252,411.66/587,627.40
  6. Step 6: Final answer
    x = 472,857.89

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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.