Home / 857,491.60-1,285,848.60-324,835.60

Finding the Fourth Proportional to 857,491.60, 1,285,848.60 and 324,835.60

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Solution

The fourth proportional to 857,491.60, 1,285,848.60 and 324,835.60 is: 487,106.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,491.60 : 1,285,848.60 = 324,835.60 : x
  2. Step 2: Convert to fraction form
    857,491.60/1,285,848.60 = 324,835.60/x
  3. Step 3: Cross multiply
    857,491.60x = 1,285,848.60 × 324,835.60
  4. Step 4: Simplify right side
    857,491.60x = 417,689,401,490.16
  5. Step 5: Solve for x
    x = 417,689,401,490.16/857,491.60
  6. Step 6: Final answer
    x = 487,106.11

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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.