Home / 665,299.69-918,113.91-359,376.06

Finding the Fourth Proportional to 665,299.69, 918,113.91 and 359,376.06

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Solution

The fourth proportional to 665,299.69, 918,113.91 and 359,376.06 is: 495,939.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,299.69 : 918,113.91 = 359,376.06 : x
  2. Step 2: Convert to fraction form
    665,299.69/918,113.91 = 359,376.06/x
  3. Step 3: Cross multiply
    665,299.69x = 918,113.91 × 359,376.06
  4. Step 4: Simplify right side
    665,299.69x = 329,948,157,698.63
  5. Step 5: Solve for x
    x = 329,948,157,698.63/665,299.69
  6. Step 6: Final answer
    x = 495,939.14

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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.