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Finding the Fourth Proportional to 710,016.16, 979,571.20 and 455,504.80

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Solution

The fourth proportional to 710,016.16, 979,571.20 and 455,504.80 is: 628,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,016.16 : 979,571.20 = 455,504.80 : x
  2. Step 2: Convert to fraction form
    710,016.16/979,571.20 = 455,504.80/x
  3. Step 3: Cross multiply
    710,016.16x = 979,571.20 × 455,504.80
  4. Step 4: Simplify right side
    710,016.16x = 446,199,383,541.76
  5. Step 5: Solve for x
    x = 446,199,383,541.76/710,016.16
  6. Step 6: Final answer
    x = 628,435.53

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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.