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Finding the Fourth Proportional to 673,899.52, 929,985.84 and 367,978.03

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Solution

The fourth proportional to 673,899.52, 929,985.84 and 367,978.03 is: 507,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,899.52 : 929,985.84 = 367,978.03 : x
  2. Step 2: Convert to fraction form
    673,899.52/929,985.84 = 367,978.03/x
  3. Step 3: Cross multiply
    673,899.52x = 929,985.84 × 367,978.03
  4. Step 4: Simplify right side
    673,899.52x = 342,214,357,331.10
  5. Step 5: Solve for x
    x = 342,214,357,331.10/673,899.52
  6. Step 6: Final answer
    x = 507,812.14

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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.