Home / 507,489.02-759,129.69-386,631.50

Finding the Fourth Proportional to 507,489.02, 759,129.69 and 386,631.50

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Solution

The fourth proportional to 507,489.02, 759,129.69 and 386,631.50 is: 578,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,489.02 : 759,129.69 = 386,631.50 : x
  2. Step 2: Convert to fraction form
    507,489.02/759,129.69 = 386,631.50/x
  3. Step 3: Cross multiply
    507,489.02x = 759,129.69 × 386,631.50
  4. Step 4: Simplify right side
    507,489.02x = 293,503,450,739.24
  5. Step 5: Solve for x
    x = 293,503,450,739.24/507,489.02
  6. Step 6: Final answer
    x = 578,344.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.