Home / 1,391,955.48-1,921,823.82-1,069,088.76

Finding the Fourth Proportional to 1,391,955.48, 1,921,823.82 and 1,069,088.76

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Solution

The fourth proportional to 1,391,955.48, 1,921,823.82 and 1,069,088.76 is: 1,476,053.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,955.48 : 1,921,823.82 = 1,069,088.76 : x
  2. Step 2: Convert to fraction form
    1,391,955.48/1,921,823.82 = 1,069,088.76/x
  3. Step 3: Cross multiply
    1,391,955.48x = 1,921,823.82 × 1,069,088.76
  4. Step 4: Simplify right side
    1,391,955.48x = 2,054,600,244,662.26
  5. Step 5: Solve for x
    x = 2,054,600,244,662.26/1,391,955.48
  6. Step 6: Final answer
    x = 1,476,053.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.