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Finding the Fourth Proportional to 646,513.65, 892,197.59 and 360,040.95

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Solution

The fourth proportional to 646,513.65, 892,197.59 and 360,040.95 is: 496,861.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,513.65 : 892,197.59 = 360,040.95 : x
  2. Step 2: Convert to fraction form
    646,513.65/892,197.59 = 360,040.95/x
  3. Step 3: Cross multiply
    646,513.65x = 892,197.59 × 360,040.95
  4. Step 4: Simplify right side
    646,513.65x = 321,227,666,091.11
  5. Step 5: Solve for x
    x = 321,227,666,091.11/646,513.65
  6. Step 6: Final answer
    x = 496,861.38

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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.