Home / 1,136,259.60-1,567,377.12-728,216.40

Finding the Fourth Proportional to 1,136,259.60, 1,567,377.12 and 728,216.40

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Solution

The fourth proportional to 1,136,259.60, 1,567,377.12 and 728,216.40 is: 1,004,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,259.60 : 1,567,377.12 = 728,216.40 : x
  2. Step 2: Convert to fraction form
    1,136,259.60/1,567,377.12 = 728,216.40/x
  3. Step 3: Cross multiply
    1,136,259.60x = 1,567,377.12 × 728,216.40
  4. Step 4: Simplify right side
    1,136,259.60x = 1,141,389,723,768.77
  5. Step 5: Solve for x
    x = 1,141,389,723,768.77/1,136,259.60
  6. Step 6: Final answer
    x = 1,004,514.92

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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.