Home / 1,938,412.08-2,907,618.84-872,208.72

Finding the Fourth Proportional to 1,938,412.08, 2,907,618.84 and 872,208.72

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Solution

The fourth proportional to 1,938,412.08, 2,907,618.84 and 872,208.72 is: 1,308,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,412.08 : 2,907,618.84 = 872,208.72 : x
  2. Step 2: Convert to fraction form
    1,938,412.08/2,907,618.84 = 872,208.72/x
  3. Step 3: Cross multiply
    1,938,412.08x = 2,907,618.84 × 872,208.72
  4. Step 4: Simplify right side
    1,938,412.08x = 2,536,050,506,684.28
  5. Step 5: Solve for x
    x = 2,536,050,506,684.28/1,938,412.08
  6. Step 6: Final answer
    x = 1,308,313.40

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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.