Home / 688,280.40-1,031,917.32-463,080.96

Finding the Fourth Proportional to 688,280.40, 1,031,917.32 and 463,080.96

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Solution

The fourth proportional to 688,280.40, 1,031,917.32 and 463,080.96 is: 694,282.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,280.40 : 1,031,917.32 = 463,080.96 : x
  2. Step 2: Convert to fraction form
    688,280.40/1,031,917.32 = 463,080.96/x
  3. Step 3: Cross multiply
    688,280.40x = 1,031,917.32 × 463,080.96
  4. Step 4: Simplify right side
    688,280.40x = 477,861,263,186.23
  5. Step 5: Solve for x
    x = 477,861,263,186.23/688,280.40
  6. Step 6: Final answer
    x = 694,282.83

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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.