Home / 832,415.85-1,248,572.52-512,628.66

Finding the Fourth Proportional to 832,415.85, 1,248,572.52 and 512,628.66

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Solution

The fourth proportional to 832,415.85, 1,248,572.52 and 512,628.66 is: 768,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,415.85 : 1,248,572.52 = 512,628.66 : x
  2. Step 2: Convert to fraction form
    832,415.85/1,248,572.52 = 512,628.66/x
  3. Step 3: Cross multiply
    832,415.85x = 1,248,572.52 × 512,628.66
  4. Step 4: Simplify right side
    832,415.85x = 640,054,057,840.42
  5. Step 5: Solve for x
    x = 640,054,057,840.42/832,415.85
  6. Step 6: Final answer
    x = 768,911.43

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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.