Home / 1,850,420.40-2,776,667.40-785,281.20

Finding the Fourth Proportional to 1,850,420.40, 2,776,667.40 and 785,281.20

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Solution

The fourth proportional to 1,850,420.40, 2,776,667.40 and 785,281.20 is: 1,178,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850,420.40 : 2,776,667.40 = 785,281.20 : x
  2. Step 2: Convert to fraction form
    1,850,420.40/2,776,667.40 = 785,281.20/x
  3. Step 3: Cross multiply
    1,850,420.40x = 2,776,667.40 × 785,281.20
  4. Step 4: Simplify right side
    1,850,420.40x = 2,180,464,707,872.88
  5. Step 5: Solve for x
    x = 2,180,464,707,872.88/1,850,420.40
  6. Step 6: Final answer
    x = 1,178,361.80

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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.