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Finding the Fourth Proportional to 536,702.78, 740,590.34 and 321,851.90

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Solution

The fourth proportional to 536,702.78, 740,590.34 and 321,851.90 is: 444,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,702.78 : 740,590.34 = 321,851.90 : x
  2. Step 2: Convert to fraction form
    536,702.78/740,590.34 = 321,851.90/x
  3. Step 3: Cross multiply
    536,702.78x = 740,590.34 × 321,851.90
  4. Step 4: Simplify right side
    536,702.78x = 238,360,408,050.65
  5. Step 5: Solve for x
    x = 238,360,408,050.65/536,702.78
  6. Step 6: Final answer
    x = 444,119.94

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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.