Home / 1,069,872.70-1,604,809.05-859,920.70

Finding the Fourth Proportional to 1,069,872.70, 1,604,809.05 and 859,920.70

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Solution

The fourth proportional to 1,069,872.70, 1,604,809.05 and 859,920.70 is: 1,289,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,872.70 : 1,604,809.05 = 859,920.70 : x
  2. Step 2: Convert to fraction form
    1,069,872.70/1,604,809.05 = 859,920.70/x
  3. Step 3: Cross multiply
    1,069,872.70x = 1,604,809.05 × 859,920.70
  4. Step 4: Simplify right side
    1,069,872.70x = 1,380,008,521,642.34
  5. Step 5: Solve for x
    x = 1,380,008,521,642.34/1,069,872.70
  6. Step 6: Final answer
    x = 1,289,881.05

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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.