Home / 1,622,117.76-2,237,624.64-942,979.20

Finding the Fourth Proportional to 1,622,117.76, 2,237,624.64 and 942,979.20

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Solution

The fourth proportional to 1,622,117.76, 2,237,624.64 and 942,979.20 is: 1,300,789.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622,117.76 : 2,237,624.64 = 942,979.20 : x
  2. Step 2: Convert to fraction form
    1,622,117.76/2,237,624.64 = 942,979.20/x
  3. Step 3: Cross multiply
    1,622,117.76x = 2,237,624.64 × 942,979.20
  4. Step 4: Simplify right side
    1,622,117.76x = 2,110,033,492,927.49
  5. Step 5: Solve for x
    x = 2,110,033,492,927.49/1,622,117.76
  6. Step 6: Final answer
    x = 1,300,789.34

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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.