Home / 1,117,811.70-1,676,717.55-407,747.48

Finding the Fourth Proportional to 1,117,811.70, 1,676,717.55 and 407,747.48

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Solution

The fourth proportional to 1,117,811.70, 1,676,717.55 and 407,747.48 is: 611,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,811.70 : 1,676,717.55 = 407,747.48 : x
  2. Step 2: Convert to fraction form
    1,117,811.70/1,676,717.55 = 407,747.48/x
  3. Step 3: Cross multiply
    1,117,811.70x = 1,676,717.55 × 407,747.48
  4. Step 4: Simplify right side
    1,117,811.70x = 683,677,347,300.69
  5. Step 5: Solve for x
    x = 683,677,347,300.69/1,117,811.70
  6. Step 6: Final answer
    x = 611,621.21

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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.