Home / 743,078.90-1,025,410.65-403,546.34

Finding the Fourth Proportional to 743,078.90, 1,025,410.65 and 403,546.34

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Solution

The fourth proportional to 743,078.90, 1,025,410.65 and 403,546.34 is: 556,873.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,078.90 : 1,025,410.65 = 403,546.34 : x
  2. Step 2: Convert to fraction form
    743,078.90/1,025,410.65 = 403,546.34/x
  3. Step 3: Cross multiply
    743,078.90x = 1,025,410.65 × 403,546.34
  4. Step 4: Simplify right side
    743,078.90x = 413,800,714,804.52
  5. Step 5: Solve for x
    x = 413,800,714,804.52/743,078.90
  6. Step 6: Final answer
    x = 556,873.19

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Double scale
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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.