Home / 885,479.48-1,328,166.35-520,945.89

Finding the Fourth Proportional to 885,479.48, 1,328,166.35 and 520,945.89

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Solution

The fourth proportional to 885,479.48, 1,328,166.35 and 520,945.89 is: 781,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,479.48 : 1,328,166.35 = 520,945.89 : x
  2. Step 2: Convert to fraction form
    885,479.48/1,328,166.35 = 520,945.89/x
  3. Step 3: Cross multiply
    885,479.48x = 1,328,166.35 × 520,945.89
  4. Step 4: Simplify right side
    885,479.48x = 691,902,795,637.00
  5. Step 5: Solve for x
    x = 691,902,795,637.00/885,479.48
  6. Step 6: Final answer
    x = 781,387.72

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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.