Home / 684,741.43-1,026,911.47-257,969.35

Finding the Fourth Proportional to 684,741.43, 1,026,911.47 and 257,969.35

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Solution

The fourth proportional to 684,741.43, 1,026,911.47 and 257,969.35 is: 386,878.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,741.43 : 1,026,911.47 = 257,969.35 : x
  2. Step 2: Convert to fraction form
    684,741.43/1,026,911.47 = 257,969.35/x
  3. Step 3: Cross multiply
    684,741.43x = 1,026,911.47 × 257,969.35
  4. Step 4: Simplify right side
    684,741.43x = 264,911,678,643.96
  5. Step 5: Solve for x
    x = 264,911,678,643.96/684,741.43
  6. Step 6: Final answer
    x = 386,878.41

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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.