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Finding the Fourth Proportional to 707,035, 975,708.46 and 389,083

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Solution

The fourth proportional to 707,035, 975,708.46 and 389,083 is: 536,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,035 : 975,708.46 = 389,083 : x
  2. Step 2: Convert to fraction form
    707,035/975,708.46 = 389,083/x
  3. Step 3: Cross multiply
    707,035x = 975,708.46 × 389,083
  4. Step 4: Simplify right side
    707,035x = 379,631,574,742.18
  5. Step 5: Solve for x
    x = 379,631,574,742.18/707,035
  6. Step 6: Final answer
    x = 536,934.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.