Home / 1,069,853.70-1,604,780.55-859,901.70

Finding the Fourth Proportional to 1,069,853.70, 1,604,780.55 and 859,901.70

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Solution

The fourth proportional to 1,069,853.70, 1,604,780.55 and 859,901.70 is: 1,289,852.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,853.70 : 1,604,780.55 = 859,901.70 : x
  2. Step 2: Convert to fraction form
    1,069,853.70/1,604,780.55 = 859,901.70/x
  3. Step 3: Cross multiply
    1,069,853.70x = 1,604,780.55 × 859,901.70
  4. Step 4: Simplify right side
    1,069,853.70x = 1,379,953,523,071.94
  5. Step 5: Solve for x
    x = 1,379,953,523,071.94/1,069,853.70
  6. Step 6: Final answer
    x = 1,289,852.55

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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.