Home / 912,365.80-1,368,157.26-313,387.24

Finding the Fourth Proportional to 912,365.80, 1,368,157.26 and 313,387.24

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Solution

The fourth proportional to 912,365.80, 1,368,157.26 and 313,387.24 is: 469,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,365.80 : 1,368,157.26 = 313,387.24 : x
  2. Step 2: Convert to fraction form
    912,365.80/1,368,157.26 = 313,387.24/x
  3. Step 3: Cross multiply
    912,365.80x = 1,368,157.26 × 313,387.24
  4. Step 4: Simplify right side
    912,365.80x = 428,763,027,597.36
  5. Step 5: Solve for x
    x = 428,763,027,597.36/912,365.80
  6. Step 6: Final answer
    x = 469,946.40

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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.