Home / 893,730.05-1,339,839.80-387,908.45

Finding the Fourth Proportional to 893,730.05, 1,339,839.80 and 387,908.45

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Solution

The fourth proportional to 893,730.05, 1,339,839.80 and 387,908.45 is: 581,534.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,730.05 : 1,339,839.80 = 387,908.45 : x
  2. Step 2: Convert to fraction form
    893,730.05/1,339,839.80 = 387,908.45/x
  3. Step 3: Cross multiply
    893,730.05x = 1,339,839.80 × 387,908.45
  4. Step 4: Simplify right side
    893,730.05x = 519,735,178,126.77
  5. Step 5: Solve for x
    x = 519,735,178,126.77/893,730.05
  6. Step 6: Final answer
    x = 581,534.86

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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.