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Finding the Fourth Proportional to 562,852.53, 776,728.71 and 308,203.65

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Solution

The fourth proportional to 562,852.53, 776,728.71 and 308,203.65 is: 425,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,852.53 : 776,728.71 = 308,203.65 : x
  2. Step 2: Convert to fraction form
    562,852.53/776,728.71 = 308,203.65/x
  3. Step 3: Cross multiply
    562,852.53x = 776,728.71 × 308,203.65
  4. Step 4: Simplify right side
    562,852.53x = 239,390,623,481.79
  5. Step 5: Solve for x
    x = 239,390,623,481.79/562,852.53
  6. Step 6: Final answer
    x = 425,316.78

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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.