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Finding the Fourth Proportional to 604,340.80, 906,802.80 and 426,464.80

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Solution

The fourth proportional to 604,340.80, 906,802.80 and 426,464.80 is: 639,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,340.80 : 906,802.80 = 426,464.80 : x
  2. Step 2: Convert to fraction form
    604,340.80/906,802.80 = 426,464.80/x
  3. Step 3: Cross multiply
    604,340.80x = 906,802.80 × 426,464.80
  4. Step 4: Simplify right side
    604,340.80x = 386,719,474,741.44
  5. Step 5: Solve for x
    x = 386,719,474,741.44/604,340.80
  6. Step 6: Final answer
    x = 639,902.97

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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.