Home / 1,220,164.56-1,683,810.59-676,288.85

Finding the Fourth Proportional to 1,220,164.56, 1,683,810.59 and 676,288.85

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Solution

The fourth proportional to 1,220,164.56, 1,683,810.59 and 676,288.85 is: 933,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,164.56 : 1,683,810.59 = 676,288.85 : x
  2. Step 2: Convert to fraction form
    1,220,164.56/1,683,810.59 = 676,288.85/x
  3. Step 3: Cross multiply
    1,220,164.56x = 1,683,810.59 × 676,288.85
  4. Step 4: Simplify right side
    1,220,164.56x = 1,138,742,315,728.42
  5. Step 5: Solve for x
    x = 1,138,742,315,728.42/1,220,164.56
  6. Step 6: Final answer
    x = 933,269.46

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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.