Home / 1,078,836.50-1,618,332.51-413,988.50

Finding the Fourth Proportional to 1,078,836.50, 1,618,332.51 and 413,988.50

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Solution

The fourth proportional to 1,078,836.50, 1,618,332.51 and 413,988.50 is: 621,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,836.50 : 1,618,332.51 = 413,988.50 : x
  2. Step 2: Convert to fraction form
    1,078,836.50/1,618,332.51 = 413,988.50/x
  3. Step 3: Cross multiply
    1,078,836.50x = 1,618,332.51 × 413,988.50
  4. Step 4: Simplify right side
    1,078,836.50x = 669,971,048,316.14
  5. Step 5: Solve for x
    x = 669,971,048,316.14/1,078,836.50
  6. Step 6: Final answer
    x = 621,012.59

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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.