Home / 1,214,089.32-1,821,133.02-315,455.72

Finding the Fourth Proportional to 1,214,089.32, 1,821,133.02 and 315,455.72

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Solution

The fourth proportional to 1,214,089.32, 1,821,133.02 and 315,455.72 is: 473,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,089.32 : 1,821,133.02 = 315,455.72 : x
  2. Step 2: Convert to fraction form
    1,214,089.32/1,821,133.02 = 315,455.72/x
  3. Step 3: Cross multiply
    1,214,089.32x = 1,821,133.02 × 315,455.72
  4. Step 4: Simplify right side
    1,214,089.32x = 574,486,828,039.87
  5. Step 5: Solve for x
    x = 574,486,828,039.87/1,214,089.32
  6. Step 6: Final answer
    x = 473,183.33

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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.