Home / 771,649.83-1,064,865.26-427,485.04

Finding the Fourth Proportional to 771,649.83, 1,064,865.26 and 427,485.04

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Solution

The fourth proportional to 771,649.83, 1,064,865.26 and 427,485.04 is: 589,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,649.83 : 1,064,865.26 = 427,485.04 : x
  2. Step 2: Convert to fraction form
    771,649.83/1,064,865.26 = 427,485.04/x
  3. Step 3: Cross multiply
    771,649.83x = 1,064,865.26 × 427,485.04
  4. Step 4: Simplify right side
    771,649.83x = 455,213,966,672.26
  5. Step 5: Solve for x
    x = 455,213,966,672.26/771,649.83
  6. Step 6: Final answer
    x = 589,922.98

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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.