Home / 771,157.40-1,064,162.21-426,968.96

Finding the Fourth Proportional to 771,157.40, 1,064,162.21 and 426,968.96

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Solution

The fourth proportional to 771,157.40, 1,064,162.21 and 426,968.96 is: 589,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,157.40 : 1,064,162.21 = 426,968.96 : x
  2. Step 2: Convert to fraction form
    771,157.40/1,064,162.21 = 426,968.96/x
  3. Step 3: Cross multiply
    771,157.40x = 1,064,162.21 × 426,968.96
  4. Step 4: Simplify right side
    771,157.40x = 454,364,224,619.35
  5. Step 5: Solve for x
    x = 454,364,224,619.35/771,157.40
  6. Step 6: Final answer
    x = 589,197.78

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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.