Home / 900,896.64-1,243,028.52-538,437.84

Finding the Fourth Proportional to 900,896.64, 1,243,028.52 and 538,437.84

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Solution

The fourth proportional to 900,896.64, 1,243,028.52 and 538,437.84 is: 742,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,896.64 : 1,243,028.52 = 538,437.84 : x
  2. Step 2: Convert to fraction form
    900,896.64/1,243,028.52 = 538,437.84/x
  3. Step 3: Cross multiply
    900,896.64x = 1,243,028.52 × 538,437.84
  4. Step 4: Simplify right side
    900,896.64x = 669,293,591,367.20
  5. Step 5: Solve for x
    x = 669,293,591,367.20/900,896.64
  6. Step 6: Final answer
    x = 742,919.40

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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.