Home / 1,312,766.70-1,811,955.12-855,021.93

Finding the Fourth Proportional to 1,312,766.70, 1,811,955.12 and 855,021.93

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Solution

The fourth proportional to 1,312,766.70, 1,811,955.12 and 855,021.93 is: 1,180,149.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,766.70 : 1,811,955.12 = 855,021.93 : x
  2. Step 2: Convert to fraction form
    1,312,766.70/1,811,955.12 = 855,021.93/x
  3. Step 3: Cross multiply
    1,312,766.70x = 1,811,955.12 × 855,021.93
  4. Step 4: Simplify right side
    1,312,766.70x = 1,549,261,363,775.78
  5. Step 5: Solve for x
    x = 1,549,261,363,775.78/1,312,766.70
  6. Step 6: Final answer
    x = 1,180,149.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.