Home / 743,415.40-1,025,907.78-403,886.44

Finding the Fourth Proportional to 743,415.40, 1,025,907.78 and 403,886.44

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Solution

The fourth proportional to 743,415.40, 1,025,907.78 and 403,886.44 is: 557,360.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,415.40 : 1,025,907.78 = 403,886.44 : x
  2. Step 2: Convert to fraction form
    743,415.40/1,025,907.78 = 403,886.44/x
  3. Step 3: Cross multiply
    743,415.40x = 1,025,907.78 × 403,886.44
  4. Step 4: Simplify right side
    743,415.40x = 414,350,241,032.50
  5. Step 5: Solve for x
    x = 414,350,241,032.50/743,415.40
  6. Step 6: Final answer
    x = 557,360.31

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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.