Home / 740,826.53-1,022,345.52-401,294.78

Finding the Fourth Proportional to 740,826.53, 1,022,345.52 and 401,294.78

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Solution

The fourth proportional to 740,826.53, 1,022,345.52 and 401,294.78 is: 553,789.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,826.53 : 1,022,345.52 = 401,294.78 : x
  2. Step 2: Convert to fraction form
    740,826.53/1,022,345.52 = 401,294.78/x
  3. Step 3: Cross multiply
    740,826.53x = 1,022,345.52 × 401,294.78
  4. Step 4: Simplify right side
    740,826.53x = 410,261,920,532.39
  5. Step 5: Solve for x
    x = 410,261,920,532.39/740,826.53
  6. Step 6: Final answer
    x = 553,789.46

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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.