Home / 728,528.58-1,005,332.92-401,898.92

Finding the Fourth Proportional to 728,528.58, 1,005,332.92 and 401,898.92

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Solution

The fourth proportional to 728,528.58, 1,005,332.92 and 401,898.92 is: 554,600.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,528.58 : 1,005,332.92 = 401,898.92 : x
  2. Step 2: Convert to fraction form
    728,528.58/1,005,332.92 = 401,898.92/x
  3. Step 3: Cross multiply
    728,528.58x = 1,005,332.92 × 401,898.92
  4. Step 4: Simplify right side
    728,528.58x = 404,042,208,757.04
  5. Step 5: Solve for x
    x = 404,042,208,757.04/728,528.58
  6. Step 6: Final answer
    x = 554,600.35

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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.