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Finding the Fourth Proportional to 536,640.66, 740,402.46 and 321,702.30

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Solution

The fourth proportional to 536,640.66, 740,402.46 and 321,702.30 is: 443,852.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,640.66 : 740,402.46 = 321,702.30 : x
  2. Step 2: Convert to fraction form
    536,640.66/740,402.46 = 321,702.30/x
  3. Step 3: Cross multiply
    536,640.66x = 740,402.46 × 321,702.30
  4. Step 4: Simplify right side
    536,640.66x = 238,189,174,307.66
  5. Step 5: Solve for x
    x = 238,189,174,307.66/536,640.66
  6. Step 6: Final answer
    x = 443,852.27

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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.