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Finding the Fourth Proportional to 632,820.30, 873,286.87 and 346,339.70

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Solution

The fourth proportional to 632,820.30, 873,286.87 and 346,339.70 is: 477,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,820.30 : 873,286.87 = 346,339.70 : x
  2. Step 2: Convert to fraction form
    632,820.30/873,286.87 = 346,339.70/x
  3. Step 3: Cross multiply
    632,820.30x = 873,286.87 × 346,339.70
  4. Step 4: Simplify right side
    632,820.30x = 302,453,911,261.67
  5. Step 5: Solve for x
    x = 302,453,911,261.67/632,820.30
  6. Step 6: Final answer
    x = 477,945.97

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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.