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Finding the Fourth Proportional to 560,784.75, 773,886.20 and 306,138.57

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Solution

The fourth proportional to 560,784.75, 773,886.20 and 306,138.57 is: 422,473.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,784.75 : 773,886.20 = 306,138.57 : x
  2. Step 2: Convert to fraction form
    560,784.75/773,886.20 = 306,138.57/x
  3. Step 3: Cross multiply
    560,784.75x = 773,886.20 × 306,138.57
  4. Step 4: Simplify right side
    560,784.75x = 236,916,413,080.04
  5. Step 5: Solve for x
    x = 236,916,413,080.04/560,784.75
  6. Step 6: Final answer
    x = 422,473.00

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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.