Home / 819,015.37-1,130,937.87-513,603.25

Finding the Fourth Proportional to 819,015.37, 1,130,937.87 and 513,603.25

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Solution

The fourth proportional to 819,015.37, 1,130,937.87 and 513,603.25 is: 709,209.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,015.37 : 1,130,937.87 = 513,603.25 : x
  2. Step 2: Convert to fraction form
    819,015.37/1,130,937.87 = 513,603.25/x
  3. Step 3: Cross multiply
    819,015.37x = 1,130,937.87 × 513,603.25
  4. Step 4: Simplify right side
    819,015.37x = 580,853,365,580.08
  5. Step 5: Solve for x
    x = 580,853,365,580.08/819,015.37
  6. Step 6: Final answer
    x = 709,209.36

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1.5x scale

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.