Home / 1,009,403.55-1,392,625.15-647,027.22

Finding the Fourth Proportional to 1,009,403.55, 1,392,625.15 and 647,027.22

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Solution

The fourth proportional to 1,009,403.55, 1,392,625.15 and 647,027.22 is: 892,672.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,403.55 : 1,392,625.15 = 647,027.22 : x
  2. Step 2: Convert to fraction form
    1,009,403.55/1,392,625.15 = 647,027.22/x
  3. Step 3: Cross multiply
    1,009,403.55x = 1,392,625.15 × 647,027.22
  4. Step 4: Simplify right side
    1,009,403.55x = 901,066,377,689.02
  5. Step 5: Solve for x
    x = 901,066,377,689.02/1,009,403.55
  6. Step 6: Final answer
    x = 892,672.09

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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.