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Finding the Fourth Proportional to 575,300.96, 793,919 and 320,668.28

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Solution

The fourth proportional to 575,300.96, 793,919 and 320,668.28 is: 442,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,300.96 : 793,919 = 320,668.28 : x
  2. Step 2: Convert to fraction form
    575,300.96/793,919 = 320,668.28/x
  3. Step 3: Cross multiply
    575,300.96x = 793,919 × 320,668.28
  4. Step 4: Simplify right side
    575,300.96x = 254,584,640,189.32
  5. Step 5: Solve for x
    x = 254,584,640,189.32/575,300.96
  6. Step 6: Final answer
    x = 442,524.27

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1.5x scale

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.