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Finding the Fourth Proportional to 665,301.29, 918,116.16 and 359,377.67

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Solution

The fourth proportional to 665,301.29, 918,116.16 and 359,377.67 is: 495,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,301.29 : 918,116.16 = 359,377.67 : x
  2. Step 2: Convert to fraction form
    665,301.29/918,116.16 = 359,377.67/x
  3. Step 3: Cross multiply
    665,301.29x = 918,116.16 × 359,377.67
  4. Step 4: Simplify right side
    665,301.29x = 329,950,446,370.15
  5. Step 5: Solve for x
    x = 329,950,446,370.15/665,301.29
  6. Step 6: Final answer
    x = 495,941.39

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1.5x scale

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.