Home / 1,430,985.94-1,974,836.26-810,911.46

Finding the Fourth Proportional to 1,430,985.94, 1,974,836.26 and 810,911.46

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Solution

The fourth proportional to 1,430,985.94, 1,974,836.26 and 810,911.46 is: 1,119,100.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,985.94 : 1,974,836.26 = 810,911.46 : x
  2. Step 2: Convert to fraction form
    1,430,985.94/1,974,836.26 = 810,911.46/x
  3. Step 3: Cross multiply
    1,430,985.94x = 1,974,836.26 × 810,911.46
  4. Step 4: Simplify right side
    1,430,985.94x = 1,601,417,354,857.54
  5. Step 5: Solve for x
    x = 1,601,417,354,857.54/1,430,985.94
  6. Step 6: Final answer
    x = 1,119,100.69

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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.