Home / 906,920.98-1,360,336.64-338,257.78

Finding the Fourth Proportional to 906,920.98, 1,360,336.64 and 338,257.78

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Solution

The fourth proportional to 906,920.98, 1,360,336.64 and 338,257.78 is: 507,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,920.98 : 1,360,336.64 = 338,257.78 : x
  2. Step 2: Convert to fraction form
    906,920.98/1,360,336.64 = 338,257.78/x
  3. Step 3: Cross multiply
    906,920.98x = 1,360,336.64 × 338,257.78
  4. Step 4: Simplify right side
    906,920.98x = 460,144,445,845.31
  5. Step 5: Solve for x
    x = 460,144,445,845.31/906,920.98
  6. Step 6: Final answer
    x = 507,369.94

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1.5x scale

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.