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Finding the Fourth Proportional to 646,670.84, 892,096.68 and 502,443.80

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Solution

The fourth proportional to 646,670.84, 892,096.68 and 502,443.80 is: 693,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,670.84 : 892,096.68 = 502,443.80 : x
  2. Step 2: Convert to fraction form
    646,670.84/892,096.68 = 502,443.80/x
  3. Step 3: Cross multiply
    646,670.84x = 892,096.68 × 502,443.80
  4. Step 4: Simplify right side
    646,670.84x = 448,228,445,866.58
  5. Step 5: Solve for x
    x = 448,228,445,866.58/646,670.84
  6. Step 6: Final answer
    x = 693,132.30

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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.