Home / 758,882.55-1,047,258.30-419,350.80

Finding the Fourth Proportional to 758,882.55, 1,047,258.30 and 419,350.80

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Solution

The fourth proportional to 758,882.55, 1,047,258.30 and 419,350.80 is: 578,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,882.55 : 1,047,258.30 = 419,350.80 : x
  2. Step 2: Convert to fraction form
    758,882.55/1,047,258.30 = 419,350.80/x
  3. Step 3: Cross multiply
    758,882.55x = 1,047,258.30 × 419,350.80
  4. Step 4: Simplify right side
    758,882.55x = 439,168,605,911.64
  5. Step 5: Solve for x
    x = 439,168,605,911.64/758,882.55
  6. Step 6: Final answer
    x = 578,704.31

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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.