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Finding the Fourth Proportional to 604,188.30, 906,282.52 and 287,685.66

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Solution

The fourth proportional to 604,188.30, 906,282.52 and 287,685.66 is: 431,528.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,188.30 : 906,282.52 = 287,685.66 : x
  2. Step 2: Convert to fraction form
    604,188.30/906,282.52 = 287,685.66/x
  3. Step 3: Cross multiply
    604,188.30x = 906,282.52 × 287,685.66
  4. Step 4: Simplify right side
    604,188.30x = 260,724,484,912.66
  5. Step 5: Solve for x
    x = 260,724,484,912.66/604,188.30
  6. Step 6: Final answer
    x = 431,528.52

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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.