Home / 857,638.24-1,285,549.44-288,477.52

Finding the Fourth Proportional to 857,638.24, 1,285,549.44 and 288,477.52

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Solution

The fourth proportional to 857,638.24, 1,285,549.44 and 288,477.52 is: 432,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,638.24 : 1,285,549.44 = 288,477.52 : x
  2. Step 2: Convert to fraction form
    857,638.24/1,285,549.44 = 288,477.52/x
  3. Step 3: Cross multiply
    857,638.24x = 1,285,549.44 × 288,477.52
  4. Step 4: Simplify right side
    857,638.24x = 370,852,114,288.59
  5. Step 5: Solve for x
    x = 370,852,114,288.59/857,638.24
  6. Step 6: Final answer
    x = 432,410.89

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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.