Home / 1,247,888.35-1,872,039.45-438,062.76

Finding the Fourth Proportional to 1,247,888.35, 1,872,039.45 and 438,062.76

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Solution

The fourth proportional to 1,247,888.35, 1,872,039.45 and 438,062.76 is: 657,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,888.35 : 1,872,039.45 = 438,062.76 : x
  2. Step 2: Convert to fraction form
    1,247,888.35/1,872,039.45 = 438,062.76/x
  3. Step 3: Cross multiply
    1,247,888.35x = 1,872,039.45 × 438,062.76
  4. Step 4: Simplify right side
    1,247,888.35x = 820,070,758,935.69
  5. Step 5: Solve for x
    x = 820,070,758,935.69/1,247,888.35
  6. Step 6: Final answer
    x = 657,166.77

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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.