Home / 772,468.80-1,158,703.20-211,502.40

Finding the Fourth Proportional to 772,468.80, 1,158,703.20 and 211,502.40

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Solution

The fourth proportional to 772,468.80, 1,158,703.20 and 211,502.40 is: 317,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,468.80 : 1,158,703.20 = 211,502.40 : x
  2. Step 2: Convert to fraction form
    772,468.80/1,158,703.20 = 211,502.40/x
  3. Step 3: Cross multiply
    772,468.80x = 1,158,703.20 × 211,502.40
  4. Step 4: Simplify right side
    772,468.80x = 245,068,507,687.68
  5. Step 5: Solve for x
    x = 245,068,507,687.68/772,468.80
  6. Step 6: Final answer
    x = 317,253.60

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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.