Home / 1,398,087.17-1,929,341.93-786,239.73

Finding the Fourth Proportional to 1,398,087.17, 1,929,341.93 and 786,239.73

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Solution

The fourth proportional to 1,398,087.17, 1,929,341.93 and 786,239.73 is: 1,085,000.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,087.17 : 1,929,341.93 = 786,239.73 : x
  2. Step 2: Convert to fraction form
    1,398,087.17/1,929,341.93 = 786,239.73/x
  3. Step 3: Cross multiply
    1,398,087.17x = 1,929,341.93 × 786,239.73
  4. Step 4: Simplify right side
    1,398,087.17x = 1,516,925,274,189.68
  5. Step 5: Solve for x
    x = 1,516,925,274,189.68/1,398,087.17
  6. Step 6: Final answer
    x = 1,085,000.50

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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.