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Finding the Fourth Proportional to 507,882, 700,877.80 and 281,561.36

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Solution

The fourth proportional to 507,882, 700,877.80 and 281,561.36 is: 388,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,882 : 700,877.80 = 281,561.36 : x
  2. Step 2: Convert to fraction form
    507,882/700,877.80 = 281,561.36/x
  3. Step 3: Cross multiply
    507,882x = 700,877.80 × 281,561.36
  4. Step 4: Simplify right side
    507,882x = 197,340,106,561.81
  5. Step 5: Solve for x
    x = 197,340,106,561.81/507,882
  6. Step 6: Final answer
    x = 388,555.03

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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.