Home / 912,342.78-1,367,667.36-432,795.60

Finding the Fourth Proportional to 912,342.78, 1,367,667.36 and 432,795.60

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Solution

The fourth proportional to 912,342.78, 1,367,667.36 and 432,795.60 is: 648,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,342.78 : 1,367,667.36 = 432,795.60 : x
  2. Step 2: Convert to fraction form
    912,342.78/1,367,667.36 = 432,795.60/x
  3. Step 3: Cross multiply
    912,342.78x = 1,367,667.36 × 432,795.60
  4. Step 4: Simplify right side
    912,342.78x = 591,920,415,671.62
  5. Step 5: Solve for x
    x = 591,920,415,671.62/912,342.78
  6. Step 6: Final answer
    x = 648,791.69

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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.