Home / 766,455.48-1,057,741.20-426,923.64

Finding the Fourth Proportional to 766,455.48, 1,057,741.20 and 426,923.64

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Solution

The fourth proportional to 766,455.48, 1,057,741.20 and 426,923.64 is: 589,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,455.48 : 1,057,741.20 = 426,923.64 : x
  2. Step 2: Convert to fraction form
    766,455.48/1,057,741.20 = 426,923.64/x
  3. Step 3: Cross multiply
    766,455.48x = 1,057,741.20 × 426,923.64
  4. Step 4: Simplify right side
    766,455.48x = 451,574,723,281.97
  5. Step 5: Solve for x
    x = 451,574,723,281.97/766,455.48
  6. Step 6: Final answer
    x = 589,172.80

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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.