Home / 646,397.55-892,185.57-374,421.42

Finding the Fourth Proportional to 646,397.55, 892,185.57 and 374,421.42

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Solution

The fourth proportional to 646,397.55, 892,185.57 and 374,421.42 is: 516,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,397.55 : 892,185.57 = 374,421.42 : x
  2. Step 2: Convert to fraction form
    646,397.55/892,185.57 = 374,421.42/x
  3. Step 3: Cross multiply
    646,397.55x = 892,185.57 × 374,421.42
  4. Step 4: Simplify right side
    646,397.55x = 334,053,388,022.91
  5. Step 5: Solve for x
    x = 334,053,388,022.91/646,397.55
  6. Step 6: Final answer
    x = 516,792.47

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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.