Home / 758,911.60-1,138,804.80-285,936.40

Finding the Fourth Proportional to 758,911.60, 1,138,804.80 and 285,936.40

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Solution

The fourth proportional to 758,911.60, 1,138,804.80 and 285,936.40 is: 429,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,911.60 : 1,138,804.80 = 285,936.40 : x
  2. Step 2: Convert to fraction form
    758,911.60/1,138,804.80 = 285,936.40/x
  3. Step 3: Cross multiply
    758,911.60x = 1,138,804.80 × 285,936.40
  4. Step 4: Simplify right side
    758,911.60x = 325,625,744,814.72
  5. Step 5: Solve for x
    x = 325,625,744,814.72/758,911.60
  6. Step 6: Final answer
    x = 429,069.40

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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.