Home / 739,950.70-1,021,132.86-400,418.94

Finding the Fourth Proportional to 739,950.70, 1,021,132.86 and 400,418.94

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Solution

The fourth proportional to 739,950.70, 1,021,132.86 and 400,418.94 is: 552,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,950.70 : 1,021,132.86 = 400,418.94 : x
  2. Step 2: Convert to fraction form
    739,950.70/1,021,132.86 = 400,418.94/x
  3. Step 3: Cross multiply
    739,950.70x = 1,021,132.86 × 400,418.94
  4. Step 4: Simplify right side
    739,950.70x = 408,880,937,400.37
  5. Step 5: Solve for x
    x = 408,880,937,400.37/739,950.70
  6. Step 6: Final answer
    x = 552,578.62

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1.5x scale

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.