Home / 771,511.50-1,064,638.90-427,327.02

Finding the Fourth Proportional to 771,511.50, 1,064,638.90 and 427,327.02

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Solution

The fourth proportional to 771,511.50, 1,064,638.90 and 427,327.02 is: 589,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,511.50 : 1,064,638.90 = 427,327.02 : x
  2. Step 2: Convert to fraction form
    771,511.50/1,064,638.90 = 427,327.02/x
  3. Step 3: Cross multiply
    771,511.50x = 1,064,638.90 × 427,327.02
  4. Step 4: Simplify right side
    771,511.50x = 454,948,966,376.44
  5. Step 5: Solve for x
    x = 454,948,966,376.44/771,511.50
  6. Step 6: Final answer
    x = 589,685.27

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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.