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Finding the Fourth Proportional to 560,679.18, 773,708.40 and 305,981.16

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Solution

The fourth proportional to 560,679.18, 773,708.40 and 305,981.16 is: 422,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,679.18 : 773,708.40 = 305,981.16 : x
  2. Step 2: Convert to fraction form
    560,679.18/773,708.40 = 305,981.16/x
  3. Step 3: Cross multiply
    560,679.18x = 773,708.40 × 305,981.16
  4. Step 4: Simplify right side
    560,679.18x = 236,740,193,733.74
  5. Step 5: Solve for x
    x = 236,740,193,733.74/560,679.18
  6. Step 6: Final answer
    x = 422,238.25

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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.