Home / 811,416.88-1,119,669.04-448,783.12

Finding the Fourth Proportional to 811,416.88, 1,119,669.04 and 448,783.12

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Solution

The fourth proportional to 811,416.88, 1,119,669.04 and 448,783.12 is: 619,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,416.88 : 1,119,669.04 = 448,783.12 : x
  2. Step 2: Convert to fraction form
    811,416.88/1,119,669.04 = 448,783.12/x
  3. Step 3: Cross multiply
    811,416.88x = 1,119,669.04 × 448,783.12
  4. Step 4: Simplify right side
    811,416.88x = 502,488,565,138.61
  5. Step 5: Solve for x
    x = 502,488,565,138.61/811,416.88
  6. Step 6: Final answer
    x = 619,273.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.