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Finding the Fourth Proportional to 660,051.81, 910,916.84 and 369,669.24

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Solution

The fourth proportional to 660,051.81, 910,916.84 and 369,669.24 is: 510,168.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,051.81 : 910,916.84 = 369,669.24 : x
  2. Step 2: Convert to fraction form
    660,051.81/910,916.84 = 369,669.24/x
  3. Step 3: Cross multiply
    660,051.81x = 910,916.84 × 369,669.24
  4. Step 4: Simplify right side
    660,051.81x = 336,737,934,097.66
  5. Step 5: Solve for x
    x = 336,737,934,097.66/660,051.81
  6. Step 6: Final answer
    x = 510,168.94

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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.