Home / 1,214,728.80-1,822,136.40-373,279.20

Finding the Fourth Proportional to 1,214,728.80, 1,822,136.40 and 373,279.20

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Solution

The fourth proportional to 1,214,728.80, 1,822,136.40 and 373,279.20 is: 559,932.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,728.80 : 1,822,136.40 = 373,279.20 : x
  2. Step 2: Convert to fraction form
    1,214,728.80/1,822,136.40 = 373,279.20/x
  3. Step 3: Cross multiply
    1,214,728.80x = 1,822,136.40 × 373,279.20
  4. Step 4: Simplify right side
    1,214,728.80x = 680,165,617,682.88
  5. Step 5: Solve for x
    x = 680,165,617,682.88/1,214,728.80
  6. Step 6: Final answer
    x = 559,932.08

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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.