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Finding the Fourth Proportional to 1,328,746.32, 1,993,819.32 and 581,317.20

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Solution

The fourth proportional to 1,328,746.32, 1,993,819.32 and 581,317.20 is: 872,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,746.32 : 1,993,819.32 = 581,317.20 : x
  2. Step 2: Convert to fraction form
    1,328,746.32/1,993,819.32 = 581,317.20/x
  3. Step 3: Cross multiply
    1,328,746.32x = 1,993,819.32 × 581,317.20
  4. Step 4: Simplify right side
    1,328,746.32x = 1,159,041,464,408.30
  5. Step 5: Solve for x
    x = 1,159,041,464,408.30/1,328,746.32
  6. Step 6: Final answer
    x = 872,281.98

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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.