Home / 677,925.76-1,017,156.48-257,313.28

Finding the Fourth Proportional to 677,925.76, 1,017,156.48 and 257,313.28

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Solution

The fourth proportional to 677,925.76, 1,017,156.48 and 257,313.28 is: 386,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,925.76 : 1,017,156.48 = 257,313.28 : x
  2. Step 2: Convert to fraction form
    677,925.76/1,017,156.48 = 257,313.28/x
  3. Step 3: Cross multiply
    677,925.76x = 1,017,156.48 × 257,313.28
  4. Step 4: Simplify right side
    677,925.76x = 261,727,870,142.05
  5. Step 5: Solve for x
    x = 261,727,870,142.05/677,925.76
  6. Step 6: Final answer
    x = 386,071.58

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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.