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Finding the Fourth Proportional to 646,483.77, 892,147.58 and 374,709.32

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Solution

The fourth proportional to 646,483.77, 892,147.58 and 374,709.32 is: 517,098.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,483.77 : 892,147.58 = 374,709.32 : x
  2. Step 2: Convert to fraction form
    646,483.77/892,147.58 = 374,709.32/x
  3. Step 3: Cross multiply
    646,483.77x = 892,147.58 × 374,709.32
  4. Step 4: Simplify right side
    646,483.77x = 334,296,006,707.16
  5. Step 5: Solve for x
    x = 334,296,006,707.16/646,483.77
  6. Step 6: Final answer
    x = 517,098.84

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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.