Home / 1,087,983.18-1,621,039.65-1,026,866.28

Finding the Fourth Proportional to 1,087,983.18, 1,621,039.65 and 1,026,866.28

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Solution

The fourth proportional to 1,087,983.18, 1,621,039.65 and 1,026,866.28 is: 1,529,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,983.18 : 1,621,039.65 = 1,026,866.28 : x
  2. Step 2: Convert to fraction form
    1,087,983.18/1,621,039.65 = 1,026,866.28/x
  3. Step 3: Cross multiply
    1,087,983.18x = 1,621,039.65 × 1,026,866.28
  4. Step 4: Simplify right side
    1,087,983.18x = 1,664,590,955,128.00
  5. Step 5: Solve for x
    x = 1,664,590,955,128.00/1,087,983.18
  6. Step 6: Final answer
    x = 1,529,978.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.