Home / 646,458.85-892,113.17-374,684.39

Finding the Fourth Proportional to 646,458.85, 892,113.17 and 374,684.39

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Solution

The fourth proportional to 646,458.85, 892,113.17 and 374,684.39 is: 517,064.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,458.85 : 892,113.17 = 374,684.39 : x
  2. Step 2: Convert to fraction form
    646,458.85/892,113.17 = 374,684.39/x
  3. Step 3: Cross multiply
    646,458.85x = 892,113.17 × 374,684.39
  4. Step 4: Simplify right side
    646,458.85x = 334,260,877,038.99
  5. Step 5: Solve for x
    x = 334,260,877,038.99/646,458.85
  6. Step 6: Final answer
    x = 517,064.43

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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.