Home / 685,967.37-1,028,951.46-286,390.32

Finding the Fourth Proportional to 685,967.37, 1,028,951.46 and 286,390.32

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Solution

The fourth proportional to 685,967.37, 1,028,951.46 and 286,390.32 is: 429,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,967.37 : 1,028,951.46 = 286,390.32 : x
  2. Step 2: Convert to fraction form
    685,967.37/1,028,951.46 = 286,390.32/x
  3. Step 3: Cross multiply
    685,967.37x = 1,028,951.46 × 286,390.32
  4. Step 4: Simplify right side
    685,967.37x = 294,681,737,893.87
  5. Step 5: Solve for x
    x = 294,681,737,893.87/685,967.37
  6. Step 6: Final answer
    x = 429,585.65

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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.