Home / 857,555.60-1,285,411.80-324,870.80

Finding the Fourth Proportional to 857,555.60, 1,285,411.80 and 324,870.80

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Solution

The fourth proportional to 857,555.60, 1,285,411.80 and 324,870.80 is: 486,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,555.60 : 1,285,411.80 = 324,870.80 : x
  2. Step 2: Convert to fraction form
    857,555.60/1,285,411.80 = 324,870.80/x
  3. Step 3: Cross multiply
    857,555.60x = 1,285,411.80 × 324,870.80
  4. Step 4: Simplify right side
    857,555.60x = 417,592,759,795.44
  5. Step 5: Solve for x
    x = 417,592,759,795.44/857,555.60
  6. Step 6: Final answer
    x = 486,957.07

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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.