Home / 761,450.94-1,050,786.63-421,916.22

Finding the Fourth Proportional to 761,450.94, 1,050,786.63 and 421,916.22

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Solution

The fourth proportional to 761,450.94, 1,050,786.63 and 421,916.22 is: 582,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,450.94 : 1,050,786.63 = 421,916.22 : x
  2. Step 2: Convert to fraction form
    761,450.94/1,050,786.63 = 421,916.22/x
  3. Step 3: Cross multiply
    761,450.94x = 1,050,786.63 × 421,916.22
  4. Step 4: Simplify right side
    761,450.94x = 443,343,922,956.14
  5. Step 5: Solve for x
    x = 443,343,922,956.14/761,450.94
  6. Step 6: Final answer
    x = 582,235.70

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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.