Home / 1,240,812.90-1,860,997.95-330,000.57

Finding the Fourth Proportional to 1,240,812.90, 1,860,997.95 and 330,000.57

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Solution

The fourth proportional to 1,240,812.90, 1,860,997.95 and 330,000.57 is: 494,941.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,812.90 : 1,860,997.95 = 330,000.57 : x
  2. Step 2: Convert to fraction form
    1,240,812.90/1,860,997.95 = 330,000.57/x
  3. Step 3: Cross multiply
    1,240,812.90x = 1,860,997.95 × 330,000.57
  4. Step 4: Simplify right side
    1,240,812.90x = 614,130,384,268.83
  5. Step 5: Solve for x
    x = 614,130,384,268.83/1,240,812.90
  6. Step 6: Final answer
    x = 494,941.97

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1.5x scale

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.