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Finding the Fourth Proportional to 708,119.28, 977,192.28 and 385,832.03

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Solution

The fourth proportional to 708,119.28, 977,192.28 and 385,832.03 is: 532,441.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,119.28 : 977,192.28 = 385,832.03 : x
  2. Step 2: Convert to fraction form
    708,119.28/977,192.28 = 385,832.03/x
  3. Step 3: Cross multiply
    708,119.28x = 977,192.28 × 385,832.03
  4. Step 4: Simplify right side
    708,119.28x = 377,032,076,206.77
  5. Step 5: Solve for x
    x = 377,032,076,206.77/708,119.28
  6. Step 6: Final answer
    x = 532,441.48

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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.