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Finding the Fourth Proportional to 671,728.62, 926,006.16 and 510,303.42

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Solution

The fourth proportional to 671,728.62, 926,006.16 and 510,303.42 is: 703,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,728.62 : 926,006.16 = 510,303.42 : x
  2. Step 2: Convert to fraction form
    671,728.62/926,006.16 = 510,303.42/x
  3. Step 3: Cross multiply
    671,728.62x = 926,006.16 × 510,303.42
  4. Step 4: Simplify right side
    671,728.62x = 472,544,110,389.07
  5. Step 5: Solve for x
    x = 472,544,110,389.07/671,728.62
  6. Step 6: Final answer
    x = 703,474.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.