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Finding the Fourth Proportional to 553,211.70, 829,817.55 and 366,223.20

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Solution

The fourth proportional to 553,211.70, 829,817.55 and 366,223.20 is: 549,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,211.70 : 829,817.55 = 366,223.20 : x
  2. Step 2: Convert to fraction form
    553,211.70/829,817.55 = 366,223.20/x
  3. Step 3: Cross multiply
    553,211.70x = 829,817.55 × 366,223.20
  4. Step 4: Simplify right side
    553,211.70x = 303,898,438,577.16
  5. Step 5: Solve for x
    x = 303,898,438,577.16/553,211.70
  6. Step 6: Final answer
    x = 549,334.80

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.