Home / 772,392.08-1,065,885-423,527.60

Finding the Fourth Proportional to 772,392.08, 1,065,885 and 423,527.60

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Solution

The fourth proportional to 772,392.08, 1,065,885 and 423,527.60 is: 584,459.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,392.08 : 1,065,885 = 423,527.60 : x
  2. Step 2: Convert to fraction form
    772,392.08/1,065,885 = 423,527.60/x
  3. Step 3: Cross multiply
    772,392.08x = 1,065,885 × 423,527.60
  4. Step 4: Simplify right side
    772,392.08x = 451,431,715,926
  5. Step 5: Solve for x
    x = 451,431,715,926/772,392.08
  6. Step 6: Final answer
    x = 584,459.28

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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.