Home / 1,892,046.40-2,838,415.20-770,228.80

Finding the Fourth Proportional to 1,892,046.40, 2,838,415.20 and 770,228.80

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Solution

The fourth proportional to 1,892,046.40, 2,838,415.20 and 770,228.80 is: 1,155,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892,046.40 : 2,838,415.20 = 770,228.80 : x
  2. Step 2: Convert to fraction form
    1,892,046.40/2,838,415.20 = 770,228.80/x
  3. Step 3: Cross multiply
    1,892,046.40x = 2,838,415.20 × 770,228.80
  4. Step 4: Simplify right side
    1,892,046.40x = 2,186,229,133,397.76
  5. Step 5: Solve for x
    x = 2,186,229,133,397.76/1,892,046.40
  6. Step 6: Final answer
    x = 1,155,483.89

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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.