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Finding the Fourth Proportional to 562,549.37, 776,318.13 and 307,900.55

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Solution

The fourth proportional to 562,549.37, 776,318.13 and 307,900.55 is: 424,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,549.37 : 776,318.13 = 307,900.55 : x
  2. Step 2: Convert to fraction form
    562,549.37/776,318.13 = 307,900.55/x
  3. Step 3: Cross multiply
    562,549.37x = 776,318.13 × 307,900.55
  4. Step 4: Simplify right side
    562,549.37x = 239,028,781,142.77
  5. Step 5: Solve for x
    x = 239,028,781,142.77/562,549.37
  6. Step 6: Final answer
    x = 424,902.77

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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.