Home / 1,069,871.70-1,604,807.55-859,919.70

Finding the Fourth Proportional to 1,069,871.70, 1,604,807.55 and 859,919.70

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Solution

The fourth proportional to 1,069,871.70, 1,604,807.55 and 859,919.70 is: 1,289,879.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,871.70 : 1,604,807.55 = 859,919.70 : x
  2. Step 2: Convert to fraction form
    1,069,871.70/1,604,807.55 = 859,919.70/x
  3. Step 3: Cross multiply
    1,069,871.70x = 1,604,807.55 × 859,919.70
  4. Step 4: Simplify right side
    1,069,871.70x = 1,380,005,626,953.73
  5. Step 5: Solve for x
    x = 1,380,005,626,953.73/1,069,871.70
  6. Step 6: Final answer
    x = 1,289,879.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.