Home / 1,432,692.25-2,149,038.35-421,814.36

Finding the Fourth Proportional to 1,432,692.25, 2,149,038.35 and 421,814.36

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Solution

The fourth proportional to 1,432,692.25, 2,149,038.35 and 421,814.36 is: 632,721.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,692.25 : 2,149,038.35 = 421,814.36 : x
  2. Step 2: Convert to fraction form
    1,432,692.25/2,149,038.35 = 421,814.36/x
  3. Step 3: Cross multiply
    1,432,692.25x = 2,149,038.35 × 421,814.36
  4. Step 4: Simplify right side
    1,432,692.25x = 906,495,234,111.63
  5. Step 5: Solve for x
    x = 906,495,234,111.63/1,432,692.25
  6. Step 6: Final answer
    x = 632,721.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.