Home / 646,601.16-892,379.36-356,242.40

Finding the Fourth Proportional to 646,601.16, 892,379.36 and 356,242.40

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Solution

The fourth proportional to 646,601.16, 892,379.36 and 356,242.40 is: 491,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,601.16 : 892,379.36 = 356,242.40 : x
  2. Step 2: Convert to fraction form
    646,601.16/892,379.36 = 356,242.40/x
  3. Step 3: Cross multiply
    646,601.16x = 892,379.36 × 356,242.40
  4. Step 4: Simplify right side
    646,601.16x = 317,903,364,916.86
  5. Step 5: Solve for x
    x = 317,903,364,916.86/646,601.16
  6. Step 6: Final answer
    x = 491,652.95

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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.