Home / 646,448.10-892,089.78-356,054.04

Finding the Fourth Proportional to 646,448.10, 892,089.78 and 356,054.04

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Solution

The fourth proportional to 646,448.10, 892,089.78 and 356,054.04 is: 491,349.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,448.10 : 892,089.78 = 356,054.04 : x
  2. Step 2: Convert to fraction form
    646,448.10/892,089.78 = 356,054.04/x
  3. Step 3: Cross multiply
    646,448.10x = 892,089.78 × 356,054.04
  4. Step 4: Simplify right side
    646,448.10x = 317,632,170,211.71
  5. Step 5: Solve for x
    x = 317,632,170,211.71/646,448.10
  6. Step 6: Final answer
    x = 491,349.84

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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.