Home / 1,408,455.90-2,112,153.30-509,675.40

Finding the Fourth Proportional to 1,408,455.90, 2,112,153.30 and 509,675.40

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Solution

The fourth proportional to 1,408,455.90, 2,112,153.30 and 509,675.40 is: 764,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,455.90 : 2,112,153.30 = 509,675.40 : x
  2. Step 2: Convert to fraction form
    1,408,455.90/2,112,153.30 = 509,675.40/x
  3. Step 3: Cross multiply
    1,408,455.90x = 2,112,153.30 × 509,675.40
  4. Step 4: Simplify right side
    1,408,455.90x = 1,076,512,578,038.82
  5. Step 5: Solve for x
    x = 1,076,512,578,038.82/1,408,455.90
  6. Step 6: Final answer
    x = 764,321.11

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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.