Home / 728,366.40-1,092,160.80-307,166.40

Finding the Fourth Proportional to 728,366.40, 1,092,160.80 and 307,166.40

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Solution

The fourth proportional to 728,366.40, 1,092,160.80 and 307,166.40 is: 460,585.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,366.40 : 1,092,160.80 = 307,166.40 : x
  2. Step 2: Convert to fraction form
    728,366.40/1,092,160.80 = 307,166.40/x
  3. Step 3: Cross multiply
    728,366.40x = 1,092,160.80 × 307,166.40
  4. Step 4: Simplify right side
    728,366.40x = 335,475,101,157.12
  5. Step 5: Solve for x
    x = 335,475,101,157.12/728,366.40
  6. Step 6: Final answer
    x = 460,585.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.