Home / 442,946.80-611,054.04-289,917.64

Finding the Fourth Proportional to 442,946.80, 611,054.04 and 289,917.64

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Solution

The fourth proportional to 442,946.80, 611,054.04 and 289,917.64 is: 399,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,946.80 : 611,054.04 = 289,917.64 : x
  2. Step 2: Convert to fraction form
    442,946.80/611,054.04 = 289,917.64/x
  3. Step 3: Cross multiply
    442,946.80x = 611,054.04 × 289,917.64
  4. Step 4: Simplify right side
    442,946.80x = 177,155,345,189.27
  5. Step 5: Solve for x
    x = 177,155,345,189.27/442,946.80
  6. Step 6: Final answer
    x = 399,947.23

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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.