Home / 1,390,047.52-1,917,698.34-873,634.87

Finding the Fourth Proportional to 1,390,047.52, 1,917,698.34 and 873,634.87

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Solution

The fourth proportional to 1,390,047.52, 1,917,698.34 and 873,634.87 is: 1,205,259.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,047.52 : 1,917,698.34 = 873,634.87 : x
  2. Step 2: Convert to fraction form
    1,390,047.52/1,917,698.34 = 873,634.87/x
  3. Step 3: Cross multiply
    1,390,047.52x = 1,917,698.34 × 873,634.87
  4. Step 4: Simplify right side
    1,390,047.52x = 1,675,368,139,965.12
  5. Step 5: Solve for x
    x = 1,675,368,139,965.12/1,390,047.52
  6. Step 6: Final answer
    x = 1,205,259.62

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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.