Home / 780,895.36-1,076,831.04-668,091.52

Finding the Fourth Proportional to 780,895.36, 1,076,831.04 and 668,091.52

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Solution

The fourth proportional to 780,895.36, 1,076,831.04 and 668,091.52 is: 921,277.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,895.36 : 1,076,831.04 = 668,091.52 : x
  2. Step 2: Convert to fraction form
    780,895.36/1,076,831.04 = 668,091.52/x
  3. Step 3: Cross multiply
    780,895.36x = 1,076,831.04 × 668,091.52
  4. Step 4: Simplify right side
    780,895.36x = 719,421,686,296.78
  5. Step 5: Solve for x
    x = 719,421,686,296.78/780,895.36
  6. Step 6: Final answer
    x = 921,277.96

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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.