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Finding the Fourth Proportional to 562,762.80, 776,617.20 and 308,116.08

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Solution

The fourth proportional to 562,762.80, 776,617.20 and 308,116.08 is: 425,202.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,762.80 : 776,617.20 = 308,116.08 : x
  2. Step 2: Convert to fraction form
    562,762.80/776,617.20 = 308,116.08/x
  3. Step 3: Cross multiply
    562,762.80x = 776,617.20 × 308,116.08
  4. Step 4: Simplify right side
    562,762.80x = 239,288,247,324.58
  5. Step 5: Solve for x
    x = 239,288,247,324.58/562,762.80
  6. Step 6: Final answer
    x = 425,202.67

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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.