Home / 1,028,575.86-1,543,110.14-429,203.61

Finding the Fourth Proportional to 1,028,575.86, 1,543,110.14 and 429,203.61

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Solution

The fourth proportional to 1,028,575.86, 1,543,110.14 and 429,203.61 is: 643,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,575.86 : 1,543,110.14 = 429,203.61 : x
  2. Step 2: Convert to fraction form
    1,028,575.86/1,543,110.14 = 429,203.61/x
  3. Step 3: Cross multiply
    1,028,575.86x = 1,543,110.14 × 429,203.61
  4. Step 4: Simplify right side
    1,028,575.86x = 662,308,440,569.59
  5. Step 5: Solve for x
    x = 662,308,440,569.59/1,028,575.86
  6. Step 6: Final answer
    x = 643,908.21

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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.