Home / 448,117.20-618,201.72-302,876.64

Finding the Fourth Proportional to 448,117.20, 618,201.72 and 302,876.64

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Solution

The fourth proportional to 448,117.20, 618,201.72 and 302,876.64 is: 417,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,117.20 : 618,201.72 = 302,876.64 : x
  2. Step 2: Convert to fraction form
    448,117.20/618,201.72 = 302,876.64/x
  3. Step 3: Cross multiply
    448,117.20x = 618,201.72 × 302,876.64
  4. Step 4: Simplify right side
    448,117.20x = 187,238,859,795.82
  5. Step 5: Solve for x
    x = 187,238,859,795.82/448,117.20
  6. Step 6: Final answer
    x = 417,834.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.