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Finding the Fourth Proportional to 507,075.44, 699,018.52 and 386,005.68

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Solution

The fourth proportional to 507,075.44, 699,018.52 and 386,005.68 is: 532,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,075.44 : 699,018.52 = 386,005.68 : x
  2. Step 2: Convert to fraction form
    507,075.44/699,018.52 = 386,005.68/x
  3. Step 3: Cross multiply
    507,075.44x = 699,018.52 × 386,005.68
  4. Step 4: Simplify right side
    507,075.44x = 269,825,119,145.19
  5. Step 5: Solve for x
    x = 269,825,119,145.19/507,075.44
  6. Step 6: Final answer
    x = 532,120.27

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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.