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Finding the Fourth Proportional to 646,960.91, 892,809.59 and 375,189.93

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Solution

The fourth proportional to 646,960.91, 892,809.59 and 375,189.93 is: 517,764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,960.91 : 892,809.59 = 375,189.93 : x
  2. Step 2: Convert to fraction form
    646,960.91/892,809.59 = 375,189.93/x
  3. Step 3: Cross multiply
    646,960.91x = 892,809.59 × 375,189.93
  4. Step 4: Simplify right side
    646,960.91x = 334,973,169,807.45
  5. Step 5: Solve for x
    x = 334,973,169,807.45/646,960.91
  6. Step 6: Final answer
    x = 517,764.16

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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.