Home / 641,957.49-885,928.03-355,477.57

Finding the Fourth Proportional to 641,957.49, 885,928.03 and 355,477.57

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Solution

The fourth proportional to 641,957.49, 885,928.03 and 355,477.57 is: 490,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,957.49 : 885,928.03 = 355,477.57 : x
  2. Step 2: Convert to fraction form
    641,957.49/885,928.03 = 355,477.57/x
  3. Step 3: Cross multiply
    641,957.49x = 885,928.03 × 355,477.57
  4. Step 4: Simplify right side
    641,957.49x = 314,927,543,299.29
  5. Step 5: Solve for x
    x = 314,927,543,299.29/641,957.49
  6. Step 6: Final answer
    x = 490,573.83

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1.5x scale

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.