Home / 1,220,700-1,684,586.26-676,858.72

Finding the Fourth Proportional to 1,220,700, 1,684,586.26 and 676,858.72

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Solution

The fourth proportional to 1,220,700, 1,684,586.26 and 676,858.72 is: 934,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,700 : 1,684,586.26 = 676,858.72 : x
  2. Step 2: Convert to fraction form
    1,220,700/1,684,586.26 = 676,858.72/x
  3. Step 3: Cross multiply
    1,220,700x = 1,684,586.26 × 676,858.72
  4. Step 4: Simplify right side
    1,220,700x = 1,140,226,899,673.19
  5. Step 5: Solve for x
    x = 1,140,226,899,673.19/1,220,700
  6. Step 6: Final answer
    x = 934,076.27

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1.5x scale

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.