Home / 780,304.96-1,076,908.56-440,795.20

Finding the Fourth Proportional to 780,304.96, 1,076,908.56 and 440,795.20

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Solution

The fourth proportional to 780,304.96, 1,076,908.56 and 440,795.20 is: 608,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,304.96 : 1,076,908.56 = 440,795.20 : x
  2. Step 2: Convert to fraction form
    780,304.96/1,076,908.56 = 440,795.20/x
  3. Step 3: Cross multiply
    780,304.96x = 1,076,908.56 × 440,795.20
  4. Step 4: Simplify right side
    780,304.96x = 474,696,124,086.91
  5. Step 5: Solve for x
    x = 474,696,124,086.91/780,304.96
  6. Step 6: Final answer
    x = 608,346.93

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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.