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Finding the Fourth Proportional to 808,230.10, 1,212,345.15 and 524,794.90

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Solution

The fourth proportional to 808,230.10, 1,212,345.15 and 524,794.90 is: 787,192.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,230.10 : 1,212,345.15 = 524,794.90 : x
  2. Step 2: Convert to fraction form
    808,230.10/1,212,345.15 = 524,794.90/x
  3. Step 3: Cross multiply
    808,230.10x = 1,212,345.15 × 524,794.90
  4. Step 4: Simplify right side
    808,230.10x = 636,232,551,759.74
  5. Step 5: Solve for x
    x = 636,232,551,759.74/808,230.10
  6. Step 6: Final answer
    x = 787,192.35

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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.