Home / 684,447.40-1,026,116.70-285,387.40

Finding the Fourth Proportional to 684,447.40, 1,026,116.70 and 285,387.40

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Solution

The fourth proportional to 684,447.40, 1,026,116.70 and 285,387.40 is: 427,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,447.40 : 1,026,116.70 = 285,387.40 : x
  2. Step 2: Convert to fraction form
    684,447.40/1,026,116.70 = 285,387.40/x
  3. Step 3: Cross multiply
    684,447.40x = 1,026,116.70 × 285,387.40
  4. Step 4: Simplify right side
    684,447.40x = 292,840,777,109.58
  5. Step 5: Solve for x
    x = 292,840,777,109.58/684,447.40
  6. Step 6: Final answer
    x = 427,849.94

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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.