Home / 1,580,586.30-2,363,881.05-1,328,643.90

Finding the Fourth Proportional to 1,580,586.30, 2,363,881.05 and 1,328,643.90

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Solution

The fourth proportional to 1,580,586.30, 2,363,881.05 and 1,328,643.90 is: 1,987,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,586.30 : 2,363,881.05 = 1,328,643.90 : x
  2. Step 2: Convert to fraction form
    1,580,586.30/2,363,881.05 = 1,328,643.90/x
  3. Step 3: Cross multiply
    1,580,586.30x = 2,363,881.05 × 1,328,643.90
  4. Step 4: Simplify right side
    1,580,586.30x = 3,140,756,137,408.10
  5. Step 5: Solve for x
    x = 3,140,756,137,408.10/1,580,586.30
  6. Step 6: Final answer
    x = 1,987,082.98

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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.