Home / 1,280,441.09-1,767,005.07-707,477.18

Finding the Fourth Proportional to 1,280,441.09, 1,767,005.07 and 707,477.18

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Solution

The fourth proportional to 1,280,441.09, 1,767,005.07 and 707,477.18 is: 976,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,441.09 : 1,767,005.07 = 707,477.18 : x
  2. Step 2: Convert to fraction form
    1,280,441.09/1,767,005.07 = 707,477.18/x
  3. Step 3: Cross multiply
    1,280,441.09x = 1,767,005.07 × 707,477.18
  4. Step 4: Simplify right side
    1,280,441.09x = 1,250,115,755,134.28
  5. Step 5: Solve for x
    x = 1,250,115,755,134.28/1,280,441.09
  6. Step 6: Final answer
    x = 976,316.50

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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.