Home / 1,449,720.32-2,000,618.70-805,140.50

Finding the Fourth Proportional to 1,449,720.32, 2,000,618.70 and 805,140.50

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Solution

The fourth proportional to 1,449,720.32, 2,000,618.70 and 805,140.50 is: 1,111,096.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,720.32 : 2,000,618.70 = 805,140.50 : x
  2. Step 2: Convert to fraction form
    1,449,720.32/2,000,618.70 = 805,140.50/x
  3. Step 3: Cross multiply
    1,449,720.32x = 2,000,618.70 × 805,140.50
  4. Step 4: Simplify right side
    1,449,720.32x = 1,610,779,130,424.26
  5. Step 5: Solve for x
    x = 1,610,779,130,424.26/1,449,720.32
  6. Step 6: Final answer
    x = 1,111,096.47

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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.