Home / 875,107.40-1,312,661.10-519,938.60

Finding the Fourth Proportional to 875,107.40, 1,312,661.10 and 519,938.60

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Solution

The fourth proportional to 875,107.40, 1,312,661.10 and 519,938.60 is: 779,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,107.40 : 1,312,661.10 = 519,938.60 : x
  2. Step 2: Convert to fraction form
    875,107.40/1,312,661.10 = 519,938.60/x
  3. Step 3: Cross multiply
    875,107.40x = 1,312,661.10 × 519,938.60
  4. Step 4: Simplify right side
    875,107.40x = 682,503,174,608.46
  5. Step 5: Solve for x
    x = 682,503,174,608.46/875,107.40
  6. Step 6: Final answer
    x = 779,907.90

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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.