Home / 770,424.80-1,155,176.40-397,176.80

Finding the Fourth Proportional to 770,424.80, 1,155,176.40 and 397,176.80

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Solution

The fourth proportional to 770,424.80, 1,155,176.40 and 397,176.80 is: 595,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,424.80 : 1,155,176.40 = 397,176.80 : x
  2. Step 2: Convert to fraction form
    770,424.80/1,155,176.40 = 397,176.80/x
  3. Step 3: Cross multiply
    770,424.80x = 1,155,176.40 × 397,176.80
  4. Step 4: Simplify right side
    770,424.80x = 458,809,265,987.52
  5. Step 5: Solve for x
    x = 458,809,265,987.52/770,424.80
  6. Step 6: Final answer
    x = 595,527.64

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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.