Home / 879,835.86-1,214,169.21-477,427.86

Finding the Fourth Proportional to 879,835.86, 1,214,169.21 and 477,427.86

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Solution

The fourth proportional to 879,835.86, 1,214,169.21 and 477,427.86 is: 658,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,835.86 : 1,214,169.21 = 477,427.86 : x
  2. Step 2: Convert to fraction form
    879,835.86/1,214,169.21 = 477,427.86/x
  3. Step 3: Cross multiply
    879,835.86x = 1,214,169.21 × 477,427.86
  4. Step 4: Simplify right side
    879,835.86x = 579,678,207,608.19
  5. Step 5: Solve for x
    x = 579,678,207,608.19/879,835.86
  6. Step 6: Final answer
    x = 658,848.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.