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Finding the Fourth Proportional to 666,737.36, 920,097.51 and 360,813.74

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Solution

The fourth proportional to 666,737.36, 920,097.51 and 360,813.74 is: 497,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,737.36 : 920,097.51 = 360,813.74 : x
  2. Step 2: Convert to fraction form
    666,737.36/920,097.51 = 360,813.74/x
  3. Step 3: Cross multiply
    666,737.36x = 920,097.51 × 360,813.74
  4. Step 4: Simplify right side
    666,737.36x = 331,983,821,897.86
  5. Step 5: Solve for x
    x = 331,983,821,897.86/666,737.36
  6. Step 6: Final answer
    x = 497,922.93

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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.