Home / 1,440,499.68-2,160,858.86-429,542.52

Finding the Fourth Proportional to 1,440,499.68, 2,160,858.86 and 429,542.52

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Solution

The fourth proportional to 1,440,499.68, 2,160,858.86 and 429,542.52 is: 644,346.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,499.68 : 2,160,858.86 = 429,542.52 : x
  2. Step 2: Convert to fraction form
    1,440,499.68/2,160,858.86 = 429,542.52/x
  3. Step 3: Cross multiply
    1,440,499.68x = 2,160,858.86 × 429,542.52
  4. Step 4: Simplify right side
    1,440,499.68x = 928,180,760,088.73
  5. Step 5: Solve for x
    x = 928,180,760,088.73/1,440,499.68
  6. Step 6: Final answer
    x = 644,346.38

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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.