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Finding the Fourth Proportional to 575,578.40, 794,260.88 and 320,914.40

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Solution

The fourth proportional to 575,578.40, 794,260.88 and 320,914.40 is: 442,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,578.40 : 794,260.88 = 320,914.40 : x
  2. Step 2: Convert to fraction form
    575,578.40/794,260.88 = 320,914.40/x
  3. Step 3: Cross multiply
    575,578.40x = 794,260.88 × 320,914.40
  4. Step 4: Simplify right side
    575,578.40x = 254,889,753,748.67
  5. Step 5: Solve for x
    x = 254,889,753,748.67/575,578.40
  6. Step 6: Final answer
    x = 442,841.07

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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.