Home / 1,398,073.22-1,929,322.69-786,225.79

Finding the Fourth Proportional to 1,398,073.22, 1,929,322.69 and 786,225.79

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Solution

The fourth proportional to 1,398,073.22, 1,929,322.69 and 786,225.79 is: 1,084,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,073.22 : 1,929,322.69 = 786,225.79 : x
  2. Step 2: Convert to fraction form
    1,398,073.22/1,929,322.69 = 786,225.79/x
  3. Step 3: Cross multiply
    1,398,073.22x = 1,929,322.69 × 786,225.79
  4. Step 4: Simplify right side
    1,398,073.22x = 1,516,883,242,532.43
  5. Step 5: Solve for x
    x = 1,516,883,242,532.43/1,398,073.22
  6. Step 6: Final answer
    x = 1,084,981.26

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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.