Home / 838,484.20-1,157,212.80-476,025.40

Finding the Fourth Proportional to 838,484.20, 1,157,212.80 and 476,025.40

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Solution

The fourth proportional to 838,484.20, 1,157,212.80 and 476,025.40 is: 656,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,484.20 : 1,157,212.80 = 476,025.40 : x
  2. Step 2: Convert to fraction form
    838,484.20/1,157,212.80 = 476,025.40/x
  3. Step 3: Cross multiply
    838,484.20x = 1,157,212.80 × 476,025.40
  4. Step 4: Simplify right side
    838,484.20x = 550,862,683,112.09
  5. Step 5: Solve for x
    x = 550,862,683,112.09/838,484.20
  6. Step 6: Final answer
    x = 656,974.44

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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.