Home / 665,220.35-918,003.74-359,296.58

Finding the Fourth Proportional to 665,220.35, 918,003.74 and 359,296.58

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Solution

The fourth proportional to 665,220.35, 918,003.74 and 359,296.58 is: 495,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,220.35 : 918,003.74 = 359,296.58 : x
  2. Step 2: Convert to fraction form
    665,220.35/918,003.74 = 359,296.58/x
  3. Step 3: Cross multiply
    665,220.35x = 918,003.74 × 359,296.58
  4. Step 4: Simplify right side
    665,220.35x = 329,835,597,822.71
  5. Step 5: Solve for x
    x = 329,835,597,822.71/665,220.35
  6. Step 6: Final answer
    x = 495,829.09

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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.