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Finding the Fourth Proportional to 575,080.40, 793,604.04 and 320,430.80

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Solution

The fourth proportional to 575,080.40, 793,604.04 and 320,430.80 is: 442,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,080.40 : 793,604.04 = 320,430.80 : x
  2. Step 2: Convert to fraction form
    575,080.40/793,604.04 = 320,430.80/x
  3. Step 3: Cross multiply
    575,080.40x = 793,604.04 × 320,430.80
  4. Step 4: Simplify right side
    575,080.40x = 254,295,177,420.43
  5. Step 5: Solve for x
    x = 254,295,177,420.43/575,080.40
  6. Step 6: Final answer
    x = 442,190.65

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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.