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Finding the Fourth Proportional to 604,188.87, 906,283.25 and 287,686.23

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Solution

The fourth proportional to 604,188.87, 906,283.25 and 287,686.23 is: 431,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,188.87 : 906,283.25 = 287,686.23 : x
  2. Step 2: Convert to fraction form
    604,188.87/906,283.25 = 287,686.23/x
  3. Step 3: Cross multiply
    604,188.87x = 906,283.25 × 287,686.23
  4. Step 4: Simplify right side
    604,188.87x = 260,725,211,504.65
  5. Step 5: Solve for x
    x = 260,725,211,504.65/604,188.87
  6. Step 6: Final answer
    x = 431,529.32

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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.