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Finding the Fourth Proportional to 879,910.88, 1,214,277.01 and 477,502.88

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Solution

The fourth proportional to 879,910.88, 1,214,277.01 and 477,502.88 is: 658,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,910.88 : 1,214,277.01 = 477,502.88 : x
  2. Step 2: Convert to fraction form
    879,910.88/1,214,277.01 = 477,502.88/x
  3. Step 3: Cross multiply
    879,910.88x = 1,214,277.01 × 477,502.88
  4. Step 4: Simplify right side
    879,910.88x = 579,820,762,127.65
  5. Step 5: Solve for x
    x = 579,820,762,127.65/879,910.88
  6. Step 6: Final answer
    x = 658,953.97

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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.