Home / 803,608.03-1,205,412.05-381,604.51

Finding the Fourth Proportional to 803,608.03, 1,205,412.05 and 381,604.51

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Solution

The fourth proportional to 803,608.03, 1,205,412.05 and 381,604.51 is: 572,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,608.03 : 1,205,412.05 = 381,604.51 : x
  2. Step 2: Convert to fraction form
    803,608.03/1,205,412.05 = 381,604.51/x
  3. Step 3: Cross multiply
    803,608.03x = 1,205,412.05 × 381,604.51
  4. Step 4: Simplify right side
    803,608.03x = 459,990,674,688.35
  5. Step 5: Solve for x
    x = 459,990,674,688.35/803,608.03
  6. Step 6: Final answer
    x = 572,406.77

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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.