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Finding the Fourth Proportional to 860,037.24, 1,290,411.24 and 433,345

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Solution

The fourth proportional to 860,037.24, 1,290,411.24 and 433,345 is: 650,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,037.24 : 1,290,411.24 = 433,345 : x
  2. Step 2: Convert to fraction form
    860,037.24/1,290,411.24 = 433,345/x
  3. Step 3: Cross multiply
    860,037.24x = 1,290,411.24 × 433,345
  4. Step 4: Simplify right side
    860,037.24x = 559,193,258,797.80
  5. Step 5: Solve for x
    x = 559,193,258,797.80/860,037.24
  6. Step 6: Final answer
    x = 650,196.56

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Double scale
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Similar ratio
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1.5x scale

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.