Home / 642,866.51-964,152.18-383,277.57

Finding the Fourth Proportional to 642,866.51, 964,152.18 and 383,277.57

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Solution

The fourth proportional to 642,866.51, 964,152.18 and 383,277.57 is: 574,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,866.51 : 964,152.18 = 383,277.57 : x
  2. Step 2: Convert to fraction form
    642,866.51/964,152.18 = 383,277.57/x
  3. Step 3: Cross multiply
    642,866.51x = 964,152.18 × 383,277.57
  4. Step 4: Simplify right side
    642,866.51x = 369,537,904,660.60
  5. Step 5: Solve for x
    x = 369,537,904,660.60/642,866.51
  6. Step 6: Final answer
    x = 574,828.36

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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.