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Finding the Fourth Proportional to 560,772.72, 773,867.52 and 306,128.16

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Solution

The fourth proportional to 560,772.72, 773,867.52 and 306,128.16 is: 422,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,772.72 : 773,867.52 = 306,128.16 : x
  2. Step 2: Convert to fraction form
    560,772.72/773,867.52 = 306,128.16/x
  3. Step 3: Cross multiply
    560,772.72x = 773,867.52 × 306,128.16
  4. Step 4: Simplify right side
    560,772.72x = 236,902,639,981.36
  5. Step 5: Solve for x
    x = 236,902,639,981.36/560,772.72
  6. Step 6: Final answer
    x = 422,457.50

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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.