Home / 685,575.60-1,028,458.98-286,124.91

Finding the Fourth Proportional to 685,575.60, 1,028,458.98 and 286,124.91

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Solution

The fourth proportional to 685,575.60, 1,028,458.98 and 286,124.91 is: 429,227.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,575.60 : 1,028,458.98 = 286,124.91 : x
  2. Step 2: Convert to fraction form
    685,575.60/1,028,458.98 = 286,124.91/x
  3. Step 3: Cross multiply
    685,575.60x = 1,028,458.98 × 286,124.91
  4. Step 4: Simplify right side
    685,575.60x = 294,267,733,091.19
  5. Step 5: Solve for x
    x = 294,267,733,091.19/685,575.60
  6. Step 6: Final answer
    x = 429,227.26

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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.