Home / 875,109.40-1,312,664.10-519,940.60

Finding the Fourth Proportional to 875,109.40, 1,312,664.10 and 519,940.60

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Solution

The fourth proportional to 875,109.40, 1,312,664.10 and 519,940.60 is: 779,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,109.40 : 1,312,664.10 = 519,940.60 : x
  2. Step 2: Convert to fraction form
    875,109.40/1,312,664.10 = 519,940.60/x
  3. Step 3: Cross multiply
    875,109.40x = 1,312,664.10 × 519,940.60
  4. Step 4: Simplify right side
    875,109.40x = 682,507,359,752.46
  5. Step 5: Solve for x
    x = 682,507,359,752.46/875,109.40
  6. Step 6: Final answer
    x = 779,910.90

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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.