Home / 1,938,632.40-2,908,409.40-816,123.60

Finding the Fourth Proportional to 1,938,632.40, 2,908,409.40 and 816,123.60

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Solution

The fourth proportional to 1,938,632.40, 2,908,409.40 and 816,123.60 is: 1,224,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,632.40 : 2,908,409.40 = 816,123.60 : x
  2. Step 2: Convert to fraction form
    1,938,632.40/2,908,409.40 = 816,123.60/x
  3. Step 3: Cross multiply
    1,938,632.40x = 2,908,409.40 × 816,123.60
  4. Step 4: Simplify right side
    1,938,632.40x = 2,373,621,549,801.84
  5. Step 5: Solve for x
    x = 2,373,621,549,801.84/1,938,632.40
  6. Step 6: Final answer
    x = 1,224,379.39

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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.