Home / 905,442.44-1,249,546.92-518,320.76

Finding the Fourth Proportional to 905,442.44, 1,249,546.92 and 518,320.76

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Solution

The fourth proportional to 905,442.44, 1,249,546.92 and 518,320.76 is: 715,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,442.44 : 1,249,546.92 = 518,320.76 : x
  2. Step 2: Convert to fraction form
    905,442.44/1,249,546.92 = 518,320.76/x
  3. Step 3: Cross multiply
    905,442.44x = 1,249,546.92 × 518,320.76
  4. Step 4: Simplify right side
    905,442.44x = 647,666,109,230.06
  5. Step 5: Solve for x
    x = 647,666,109,230.06/905,442.44
  6. Step 6: Final answer
    x = 715,303.46

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Double scale
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Similar ratio
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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.