Home / 728,358.48-1,005,038.28-441,890.64

Finding the Fourth Proportional to 728,358.48, 1,005,038.28 and 441,890.64

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Solution

The fourth proportional to 728,358.48, 1,005,038.28 and 441,890.64 is: 609,750.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,358.48 : 1,005,038.28 = 441,890.64 : x
  2. Step 2: Convert to fraction form
    728,358.48/1,005,038.28 = 441,890.64/x
  3. Step 3: Cross multiply
    728,358.48x = 1,005,038.28 × 441,890.64
  4. Step 4: Simplify right side
    728,358.48x = 444,117,008,773.70
  5. Step 5: Solve for x
    x = 444,117,008,773.70/728,358.48
  6. Step 6: Final answer
    x = 609,750.58

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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.