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Finding the Fourth Proportional to 535,355.80, 738,792.06 and 293,640.34

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Solution

The fourth proportional to 535,355.80, 738,792.06 and 293,640.34 is: 405,224.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,355.80 : 738,792.06 = 293,640.34 : x
  2. Step 2: Convert to fraction form
    535,355.80/738,792.06 = 293,640.34/x
  3. Step 3: Cross multiply
    535,355.80x = 738,792.06 × 293,640.34
  4. Step 4: Simplify right side
    535,355.80x = 216,939,151,687.70
  5. Step 5: Solve for x
    x = 216,939,151,687.70/535,355.80
  6. Step 6: Final answer
    x = 405,224.25

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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.