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Finding the Fourth Proportional to 575,287.66, 793,924.14 and 320,640.67

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Solution

The fourth proportional to 575,287.66, 793,924.14 and 320,640.67 is: 442,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,287.66 : 793,924.14 = 320,640.67 : x
  2. Step 2: Convert to fraction form
    575,287.66/793,924.14 = 320,640.67/x
  3. Step 3: Cross multiply
    575,287.66x = 793,924.14 × 320,640.67
  4. Step 4: Simplify right side
    575,287.66x = 254,564,368,178.77
  5. Step 5: Solve for x
    x = 254,564,368,178.77/575,287.66
  6. Step 6: Final answer
    x = 442,499.27

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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.