Home / 761,406.23-1,050,740.62-421,874.48

Finding the Fourth Proportional to 761,406.23, 1,050,740.62 and 421,874.48

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Solution

The fourth proportional to 761,406.23, 1,050,740.62 and 421,874.48 is: 582,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,406.23 : 1,050,740.62 = 421,874.48 : x
  2. Step 2: Convert to fraction form
    761,406.23/1,050,740.62 = 421,874.48/x
  3. Step 3: Cross multiply
    761,406.23x = 1,050,740.62 × 421,874.48
  4. Step 4: Simplify right side
    761,406.23x = 443,280,654,249.54
  5. Step 5: Solve for x
    x = 443,280,654,249.54/761,406.23
  6. Step 6: Final answer
    x = 582,186.80

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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.