Home / 1,153,055.36-1,591,111.68-643,664

Finding the Fourth Proportional to 1,153,055.36, 1,591,111.68 and 643,664

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Solution

The fourth proportional to 1,153,055.36, 1,591,111.68 and 643,664 is: 888,197.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153,055.36 : 1,591,111.68 = 643,664 : x
  2. Step 2: Convert to fraction form
    1,153,055.36/1,591,111.68 = 643,664/x
  3. Step 3: Cross multiply
    1,153,055.36x = 1,591,111.68 × 643,664
  4. Step 4: Simplify right side
    1,153,055.36x = 1,024,141,308,395.52
  5. Step 5: Solve for x
    x = 1,024,141,308,395.52/1,153,055.36
  6. Step 6: Final answer
    x = 888,197.86

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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.