Home / 685,968.37-1,028,952.96-286,391.32

Finding the Fourth Proportional to 685,968.37, 1,028,952.96 and 286,391.32

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Solution

The fourth proportional to 685,968.37, 1,028,952.96 and 286,391.32 is: 429,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,968.37 : 1,028,952.96 = 286,391.32 : x
  2. Step 2: Convert to fraction form
    685,968.37/1,028,952.96 = 286,391.32/x
  3. Step 3: Cross multiply
    685,968.37x = 1,028,952.96 × 286,391.32
  4. Step 4: Simplify right side
    685,968.37x = 294,683,196,432.31
  5. Step 5: Solve for x
    x = 294,683,196,432.31/685,968.37
  6. Step 6: Final answer
    x = 429,587.15

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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.