Home / 759,080.84-1,138,820.64-272,812.06

Finding the Fourth Proportional to 759,080.84, 1,138,820.64 and 272,812.06

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Solution

The fourth proportional to 759,080.84, 1,138,820.64 and 272,812.06 is: 409,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,080.84 : 1,138,820.64 = 272,812.06 : x
  2. Step 2: Convert to fraction form
    759,080.84/1,138,820.64 = 272,812.06/x
  3. Step 3: Cross multiply
    759,080.84x = 1,138,820.64 × 272,812.06
  4. Step 4: Simplify right side
    759,080.84x = 310,683,997,710.76
  5. Step 5: Solve for x
    x = 310,683,997,710.76/759,080.84
  6. Step 6: Final answer
    x = 409,289.74

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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.