Home / 768,558.81-1,153,541.34-389,741.01

Finding the Fourth Proportional to 768,558.81, 1,153,541.34 and 389,741.01

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Solution

The fourth proportional to 768,558.81, 1,153,541.34 and 389,741.01 is: 584,968.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,558.81 : 1,153,541.34 = 389,741.01 : x
  2. Step 2: Convert to fraction form
    768,558.81/1,153,541.34 = 389,741.01/x
  3. Step 3: Cross multiply
    768,558.81x = 1,153,541.34 × 389,741.01
  4. Step 4: Simplify right side
    768,558.81x = 449,582,366,928.35
  5. Step 5: Solve for x
    x = 449,582,366,928.35/768,558.81
  6. Step 6: Final answer
    x = 584,968.07

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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.