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Finding the Fourth Proportional to 604,328.80, 906,838.80 and 417,474.40

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Solution

The fourth proportional to 604,328.80, 906,838.80 and 417,474.40 is: 626,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,328.80 : 906,838.80 = 417,474.40 : x
  2. Step 2: Convert to fraction form
    604,328.80/906,838.80 = 417,474.40/x
  3. Step 3: Cross multiply
    604,328.80x = 906,838.80 × 417,474.40
  4. Step 4: Simplify right side
    604,328.80x = 378,581,983,926.72
  5. Step 5: Solve for x
    x = 378,581,983,926.72/604,328.80
  6. Step 6: Final answer
    x = 626,450.34

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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.