Home / 1,820,810.40-2,731,215.60-638,858.40

Finding the Fourth Proportional to 1,820,810.40, 2,731,215.60 and 638,858.40

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Solution

The fourth proportional to 1,820,810.40, 2,731,215.60 and 638,858.40 is: 958,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,810.40 : 2,731,215.60 = 638,858.40 : x
  2. Step 2: Convert to fraction form
    1,820,810.40/2,731,215.60 = 638,858.40/x
  3. Step 3: Cross multiply
    1,820,810.40x = 2,731,215.60 × 638,858.40
  4. Step 4: Simplify right side
    1,820,810.40x = 1,744,860,028,271.04
  5. Step 5: Solve for x
    x = 1,744,860,028,271.04/1,820,810.40
  6. Step 6: Final answer
    x = 958,287.60

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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.