Home / 1,214,535.80-1,821,803.70-373,129.40

Finding the Fourth Proportional to 1,214,535.80, 1,821,803.70 and 373,129.40

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Solution

The fourth proportional to 1,214,535.80, 1,821,803.70 and 373,129.40 is: 559,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,535.80 : 1,821,803.70 = 373,129.40 : x
  2. Step 2: Convert to fraction form
    1,214,535.80/1,821,803.70 = 373,129.40/x
  3. Step 3: Cross multiply
    1,214,535.80x = 1,821,803.70 × 373,129.40
  4. Step 4: Simplify right side
    1,214,535.80x = 679,768,521,498.78
  5. Step 5: Solve for x
    x = 679,768,521,498.78/1,214,535.80
  6. Step 6: Final answer
    x = 559,694.10

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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.