Home / 761,327.62-1,050,586.59-421,771.30

Finding the Fourth Proportional to 761,327.62, 1,050,586.59 and 421,771.30

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Solution

The fourth proportional to 761,327.62, 1,050,586.59 and 421,771.30 is: 582,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,327.62 : 1,050,586.59 = 421,771.30 : x
  2. Step 2: Convert to fraction form
    761,327.62/1,050,586.59 = 421,771.30/x
  3. Step 3: Cross multiply
    761,327.62x = 1,050,586.59 × 421,771.30
  4. Step 4: Simplify right side
    761,327.62x = 443,107,271,826.87
  5. Step 5: Solve for x
    x = 443,107,271,826.87/761,327.62
  6. Step 6: Final answer
    x = 582,019.17

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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.