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Finding the Fourth Proportional to 672,317.21, 927,797.76 and 370,511.21

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Solution

The fourth proportional to 672,317.21, 927,797.76 and 370,511.21 is: 511,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,317.21 : 927,797.76 = 370,511.21 : x
  2. Step 2: Convert to fraction form
    672,317.21/927,797.76 = 370,511.21/x
  3. Step 3: Cross multiply
    672,317.21x = 927,797.76 × 370,511.21
  4. Step 4: Simplify right side
    672,317.21x = 343,759,470,692.89
  5. Step 5: Solve for x
    x = 343,759,470,692.89/672,317.21
  6. Step 6: Final answer
    x = 511,305.48

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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.