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Finding the Fourth Proportional to 472,750.40, 707,813.40 and 459,628.40

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Solution

The fourth proportional to 472,750.40, 707,813.40 and 459,628.40 is: 688,166.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,750.40 : 707,813.40 = 459,628.40 : x
  2. Step 2: Convert to fraction form
    472,750.40/707,813.40 = 459,628.40/x
  3. Step 3: Cross multiply
    472,750.40x = 707,813.40 × 459,628.40
  4. Step 4: Simplify right side
    472,750.40x = 325,331,140,540.56
  5. Step 5: Solve for x
    x = 325,331,140,540.56/472,750.40
  6. Step 6: Final answer
    x = 688,166.82

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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.