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Finding the Fourth Proportional to 604,995.44, 905,907.72 and 426,536.24

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Solution

The fourth proportional to 604,995.44, 905,907.72 and 426,536.24 is: 638,686.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,995.44 : 905,907.72 = 426,536.24 : x
  2. Step 2: Convert to fraction form
    604,995.44/905,907.72 = 426,536.24/x
  3. Step 3: Cross multiply
    604,995.44x = 905,907.72 × 426,536.24
  4. Step 4: Simplify right side
    604,995.44x = 386,402,472,675.77
  5. Step 5: Solve for x
    x = 386,402,472,675.77/604,995.44
  6. Step 6: Final answer
    x = 638,686.59

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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.