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Finding the Fourth Proportional to 560,066.25, 772,949.76 and 345,200.79

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Solution

The fourth proportional to 560,066.25, 772,949.76 and 345,200.79 is: 476,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,066.25 : 772,949.76 = 345,200.79 : x
  2. Step 2: Convert to fraction form
    560,066.25/772,949.76 = 345,200.79/x
  3. Step 3: Cross multiply
    560,066.25x = 772,949.76 × 345,200.79
  4. Step 4: Simplify right side
    560,066.25x = 266,822,867,782.31
  5. Step 5: Solve for x
    x = 266,822,867,782.31/560,066.25
  6. Step 6: Final answer
    x = 476,413.05

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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.