Home / 465,834.69-643,170.56-356,746.55

Finding the Fourth Proportional to 465,834.69, 643,170.56 and 356,746.55

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Solution

The fourth proportional to 465,834.69, 643,170.56 and 356,746.55 is: 492,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,834.69 : 643,170.56 = 356,746.55 : x
  2. Step 2: Convert to fraction form
    465,834.69/643,170.56 = 356,746.55/x
  3. Step 3: Cross multiply
    465,834.69x = 643,170.56 × 356,746.55
  4. Step 4: Simplify right side
    465,834.69x = 229,448,873,341.98
  5. Step 5: Solve for x
    x = 229,448,873,341.98/465,834.69
  6. Step 6: Final answer
    x = 492,554.29

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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.