Home / 1,200,519.85-1,800,782.82-490,547.89

Finding the Fourth Proportional to 1,200,519.85, 1,800,782.82 and 490,547.89

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Solution

The fourth proportional to 1,200,519.85, 1,800,782.82 and 490,547.89 is: 735,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,519.85 : 1,800,782.82 = 490,547.89 : x
  2. Step 2: Convert to fraction form
    1,200,519.85/1,800,782.82 = 490,547.89/x
  3. Step 3: Cross multiply
    1,200,519.85x = 1,800,782.82 × 490,547.89
  4. Step 4: Simplify right side
    1,200,519.85x = 883,370,212,699.25
  5. Step 5: Solve for x
    x = 883,370,212,699.25/1,200,519.85
  6. Step 6: Final answer
    x = 735,823.08

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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.