Home / 1,424,856-1,966,233.45-780,279.67

Finding the Fourth Proportional to 1,424,856, 1,966,233.45 and 780,279.67

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Solution

The fourth proportional to 1,424,856, 1,966,233.45 and 780,279.67 is: 1,076,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,856 : 1,966,233.45 = 780,279.67 : x
  2. Step 2: Convert to fraction form
    1,424,856/1,966,233.45 = 780,279.67/x
  3. Step 3: Cross multiply
    1,424,856x = 1,966,233.45 × 780,279.67
  4. Step 4: Simplify right side
    1,424,856x = 1,534,211,987,508.96
  5. Step 5: Solve for x
    x = 1,534,211,987,508.96/1,424,856
  6. Step 6: Final answer
    x = 1,076,748.80

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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.