Home / 409,038.35-613,837.77-142,798.86

Finding the Fourth Proportional to 409,038.35, 613,837.77 and 142,798.86

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Solution

The fourth proportional to 409,038.35, 613,837.77 and 142,798.86 is: 214,296.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,038.35 : 613,837.77 = 142,798.86 : x
  2. Step 2: Convert to fraction form
    409,038.35/613,837.77 = 142,798.86/x
  3. Step 3: Cross multiply
    409,038.35x = 613,837.77 × 142,798.86
  4. Step 4: Simplify right side
    409,038.35x = 87,655,333,780.94
  5. Step 5: Solve for x
    x = 87,655,333,780.94/409,038.35
  6. Step 6: Final answer
    x = 214,296.13

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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.