Home / 665,307.04-918,124.11-359,383.45

Finding the Fourth Proportional to 665,307.04, 918,124.11 and 359,383.45

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Solution

The fourth proportional to 665,307.04, 918,124.11 and 359,383.45 is: 495,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,307.04 : 918,124.11 = 359,383.45 : x
  2. Step 2: Convert to fraction form
    665,307.04/918,124.11 = 359,383.45/x
  3. Step 3: Cross multiply
    665,307.04x = 918,124.11 × 359,383.45
  4. Step 4: Simplify right side
    665,307.04x = 329,958,610,179.98
  5. Step 5: Solve for x
    x = 329,958,610,179.98/665,307.04
  6. Step 6: Final answer
    x = 495,949.37

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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.