Home / 874,694.50-1,307,249.39-638,534.50

Finding the Fourth Proportional to 874,694.50, 1,307,249.39 and 638,534.50

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Solution

The fourth proportional to 874,694.50, 1,307,249.39 and 638,534.50 is: 954,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,694.50 : 1,307,249.39 = 638,534.50 : x
  2. Step 2: Convert to fraction form
    874,694.50/1,307,249.39 = 638,534.50/x
  3. Step 3: Cross multiply
    874,694.50x = 1,307,249.39 × 638,534.50
  4. Step 4: Simplify right side
    874,694.50x = 834,723,833,947.17
  5. Step 5: Solve for x
    x = 834,723,833,947.17/874,694.50
  6. Step 6: Final answer
    x = 954,303.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.