Home / 1,086,890.40-1,630,335.06-338,936.40

Finding the Fourth Proportional to 1,086,890.40, 1,630,335.06 and 338,936.40

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Solution

The fourth proportional to 1,086,890.40, 1,630,335.06 and 338,936.40 is: 508,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,890.40 : 1,630,335.06 = 338,936.40 : x
  2. Step 2: Convert to fraction form
    1,086,890.40/1,630,335.06 = 338,936.40/x
  3. Step 3: Cross multiply
    1,086,890.40x = 1,630,335.06 × 338,936.40
  4. Step 4: Simplify right side
    1,086,890.40x = 552,579,896,030.18
  5. Step 5: Solve for x
    x = 552,579,896,030.18/1,086,890.40
  6. Step 6: Final answer
    x = 508,404.43

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Double scale
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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.