Home / 1,427,509.77-1,970,018.73-782,957.13

Finding the Fourth Proportional to 1,427,509.77, 1,970,018.73 and 782,957.13

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Solution

The fourth proportional to 1,427,509.77, 1,970,018.73 and 782,957.13 is: 1,080,511.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,509.77 : 1,970,018.73 = 782,957.13 : x
  2. Step 2: Convert to fraction form
    1,427,509.77/1,970,018.73 = 782,957.13/x
  3. Step 3: Cross multiply
    1,427,509.77x = 1,970,018.73 × 782,957.13
  4. Step 4: Simplify right side
    1,427,509.77x = 1,542,440,210,887.05
  5. Step 5: Solve for x
    x = 1,542,440,210,887.05/1,427,509.77
  6. Step 6: Final answer
    x = 1,080,511.14

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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.