Home / 722,941.80-1,084,412.70-457,221.30

Finding the Fourth Proportional to 722,941.80, 1,084,412.70 and 457,221.30

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Solution

The fourth proportional to 722,941.80, 1,084,412.70 and 457,221.30 is: 685,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,941.80 : 1,084,412.70 = 457,221.30 : x
  2. Step 2: Convert to fraction form
    722,941.80/1,084,412.70 = 457,221.30/x
  3. Step 3: Cross multiply
    722,941.80x = 1,084,412.70 × 457,221.30
  4. Step 4: Simplify right side
    722,941.80x = 495,816,584,430.51
  5. Step 5: Solve for x
    x = 495,816,584,430.51/722,941.80
  6. Step 6: Final answer
    x = 685,831.95

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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.