Home / 743,473.58-1,025,980.89-403,939.40

Finding the Fourth Proportional to 743,473.58, 1,025,980.89 and 403,939.40

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Solution

The fourth proportional to 743,473.58, 1,025,980.89 and 403,939.40 is: 557,429.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,473.58 : 1,025,980.89 = 403,939.40 : x
  2. Step 2: Convert to fraction form
    743,473.58/1,025,980.89 = 403,939.40/x
  3. Step 3: Cross multiply
    743,473.58x = 1,025,980.89 × 403,939.40
  4. Step 4: Simplify right side
    743,473.58x = 414,434,099,988.16
  5. Step 5: Solve for x
    x = 414,434,099,988.16/743,473.58
  6. Step 6: Final answer
    x = 557,429.50

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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.