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Finding the Fourth Proportional to 560,279.16, 773,184.30 and 305,630.35

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Solution

The fourth proportional to 560,279.16, 773,184.30 and 305,630.35 is: 421,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,279.16 : 773,184.30 = 305,630.35 : x
  2. Step 2: Convert to fraction form
    560,279.16/773,184.30 = 305,630.35/x
  3. Step 3: Cross multiply
    560,279.16x = 773,184.30 × 305,630.35
  4. Step 4: Simplify right side
    560,279.16x = 236,308,584,357.58
  5. Step 5: Solve for x
    x = 236,308,584,357.58/560,279.16
  6. Step 6: Final answer
    x = 421,769.36

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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.