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Finding the Fourth Proportional to 580,809.05, 801,488.34 and 322,702.28

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Solution

The fourth proportional to 580,809.05, 801,488.34 and 322,702.28 is: 445,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,809.05 : 801,488.34 = 322,702.28 : x
  2. Step 2: Convert to fraction form
    580,809.05/801,488.34 = 322,702.28/x
  3. Step 3: Cross multiply
    580,809.05x = 801,488.34 × 322,702.28
  4. Step 4: Simplify right side
    580,809.05x = 258,642,110,703.97
  5. Step 5: Solve for x
    x = 258,642,110,703.97/580,809.05
  6. Step 6: Final answer
    x = 445,313.50

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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.