Home / 857,271.60-1,285,907.40-288,605.16

Finding the Fourth Proportional to 857,271.60, 1,285,907.40 and 288,605.16

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Solution

The fourth proportional to 857,271.60, 1,285,907.40 and 288,605.16 is: 432,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,271.60 : 1,285,907.40 = 288,605.16 : x
  2. Step 2: Convert to fraction form
    857,271.60/1,285,907.40 = 288,605.16/x
  3. Step 3: Cross multiply
    857,271.60x = 1,285,907.40 × 288,605.16
  4. Step 4: Simplify right side
    857,271.60x = 371,119,510,922.18
  5. Step 5: Solve for x
    x = 371,119,510,922.18/857,271.60
  6. Step 6: Final answer
    x = 432,907.74

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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.