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Finding the Fourth Proportional to 661,529.58, 912,883.05 and 375,068.94

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Solution

The fourth proportional to 661,529.58, 912,883.05 and 375,068.94 is: 517,579.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,529.58 : 912,883.05 = 375,068.94 : x
  2. Step 2: Convert to fraction form
    661,529.58/912,883.05 = 375,068.94/x
  3. Step 3: Cross multiply
    661,529.58x = 912,883.05 × 375,068.94
  4. Step 4: Simplify right side
    661,529.58x = 342,394,077,907.47
  5. Step 5: Solve for x
    x = 342,394,077,907.47/661,529.58
  6. Step 6: Final answer
    x = 517,579.39

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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.