Home / 1,128,208.75-1,692,316.77-286,760.50

Finding the Fourth Proportional to 1,128,208.75, 1,692,316.77 and 286,760.50

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Solution

The fourth proportional to 1,128,208.75, 1,692,316.77 and 286,760.50 is: 430,141.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,208.75 : 1,692,316.77 = 286,760.50 : x
  2. Step 2: Convert to fraction form
    1,128,208.75/1,692,316.77 = 286,760.50/x
  3. Step 3: Cross multiply
    1,128,208.75x = 1,692,316.77 × 286,760.50
  4. Step 4: Simplify right side
    1,128,208.75x = 485,289,609,756.27
  5. Step 5: Solve for x
    x = 485,289,609,756.27/1,128,208.75
  6. Step 6: Final answer
    x = 430,141.68

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1.5x scale

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.