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Finding the Fourth Proportional to 628,518.42, 942,777.63 and 517,477.14

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Solution

The fourth proportional to 628,518.42, 942,777.63 and 517,477.14 is: 776,215.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,518.42 : 942,777.63 = 517,477.14 : x
  2. Step 2: Convert to fraction form
    628,518.42/942,777.63 = 517,477.14/x
  3. Step 3: Cross multiply
    628,518.42x = 942,777.63 × 517,477.14
  4. Step 4: Simplify right side
    628,518.42x = 487,865,871,628.38
  5. Step 5: Solve for x
    x = 487,865,871,628.38/628,518.42
  6. Step 6: Final answer
    x = 776,215.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.