Home / 1,379,279.61-1,903,238.64-767,287.71

Finding the Fourth Proportional to 1,379,279.61, 1,903,238.64 and 767,287.71

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Solution

The fourth proportional to 1,379,279.61, 1,903,238.64 and 767,287.71 is: 1,058,764.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,279.61 : 1,903,238.64 = 767,287.71 : x
  2. Step 2: Convert to fraction form
    1,379,279.61/1,903,238.64 = 767,287.71/x
  3. Step 3: Cross multiply
    1,379,279.61x = 1,903,238.64 × 767,287.71
  4. Step 4: Simplify right side
    1,379,279.61x = 1,460,331,617,669.11
  5. Step 5: Solve for x
    x = 1,460,331,617,669.11/1,379,279.61
  6. Step 6: Final answer
    x = 1,058,764.01

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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.