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Finding the Fourth Proportional to 562,685.56, 776,506.10 and 308,036.75

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Solution

The fourth proportional to 562,685.56, 776,506.10 and 308,036.75 is: 425,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,685.56 : 776,506.10 = 308,036.75 : x
  2. Step 2: Convert to fraction form
    562,685.56/776,506.10 = 308,036.75/x
  3. Step 3: Cross multiply
    562,685.56x = 776,506.10 × 308,036.75
  4. Step 4: Simplify right side
    562,685.56x = 239,192,409,976.46
  5. Step 5: Solve for x
    x = 239,192,409,976.46/562,685.56
  6. Step 6: Final answer
    x = 425,090.72

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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.