Home / 956,911.73-1,320,539.42-521,326.94

Finding the Fourth Proportional to 956,911.73, 1,320,539.42 and 521,326.94

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Solution

The fourth proportional to 956,911.73, 1,320,539.42 and 521,326.94 is: 719,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,911.73 : 1,320,539.42 = 521,326.94 : x
  2. Step 2: Convert to fraction form
    956,911.73/1,320,539.42 = 521,326.94/x
  3. Step 3: Cross multiply
    956,911.73x = 1,320,539.42 × 521,326.94
  4. Step 4: Simplify right side
    956,911.73x = 688,432,769,678.60
  5. Step 5: Solve for x
    x = 688,432,769,678.60/956,911.73
  6. Step 6: Final answer
    x = 719,431.85

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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.