Home / 646,962.50-892,814.31-356,584.38

Finding the Fourth Proportional to 646,962.50, 892,814.31 and 356,584.38

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Solution

The fourth proportional to 646,962.50, 892,814.31 and 356,584.38 is: 492,089.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,962.50 : 892,814.31 = 356,584.38 : x
  2. Step 2: Convert to fraction form
    646,962.50/892,814.31 = 356,584.38/x
  3. Step 3: Cross multiply
    646,962.50x = 892,814.31 × 356,584.38
  4. Step 4: Simplify right side
    646,962.50x = 318,363,637,186.48
  5. Step 5: Solve for x
    x = 318,363,637,186.48/646,962.50
  6. Step 6: Final answer
    x = 492,089.79

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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.