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Finding the Fourth Proportional to 560,518.89, 773,532.45 and 305,886.48

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Solution

The fourth proportional to 560,518.89, 773,532.45 and 305,886.48 is: 422,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,518.89 : 773,532.45 = 305,886.48 : x
  2. Step 2: Convert to fraction form
    560,518.89/773,532.45 = 305,886.48/x
  3. Step 3: Cross multiply
    560,518.89x = 773,532.45 × 305,886.48
  4. Step 4: Simplify right side
    560,518.89x = 236,613,118,296.28
  5. Step 5: Solve for x
    x = 236,613,118,296.28/560,518.89
  6. Step 6: Final answer
    x = 422,132.28

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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.