Home / 918,107.84-1,265,653.49-641,607.24

Finding the Fourth Proportional to 918,107.84, 1,265,653.49 and 641,607.24

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Solution

The fourth proportional to 918,107.84, 1,265,653.49 and 641,607.24 is: 884,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,107.84 : 1,265,653.49 = 641,607.24 : x
  2. Step 2: Convert to fraction form
    918,107.84/1,265,653.49 = 641,607.24/x
  3. Step 3: Cross multiply
    918,107.84x = 1,265,653.49 × 641,607.24
  4. Step 4: Simplify right side
    918,107.84x = 812,052,441,746.19
  5. Step 5: Solve for x
    x = 812,052,441,746.19/918,107.84
  6. Step 6: Final answer
    x = 884,484.81

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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.