Home / 780,303.96-1,076,907.18-440,794.20

Finding the Fourth Proportional to 780,303.96, 1,076,907.18 and 440,794.20

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Solution

The fourth proportional to 780,303.96, 1,076,907.18 and 440,794.20 is: 608,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,303.96 : 1,076,907.18 = 440,794.20 : x
  2. Step 2: Convert to fraction form
    780,303.96/1,076,907.18 = 440,794.20/x
  3. Step 3: Cross multiply
    780,303.96x = 1,076,907.18 × 440,794.20
  4. Step 4: Simplify right side
    780,303.96x = 474,694,438,882.36
  5. Step 5: Solve for x
    x = 474,694,438,882.36/780,303.96
  6. Step 6: Final answer
    x = 608,345.55

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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.