Home / 845,828.52-1,268,976.96-390,558.70

Finding the Fourth Proportional to 845,828.52, 1,268,976.96 and 390,558.70

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Solution

The fourth proportional to 845,828.52, 1,268,976.96 and 390,558.70 is: 585,946.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,828.52 : 1,268,976.96 = 390,558.70 : x
  2. Step 2: Convert to fraction form
    845,828.52/1,268,976.96 = 390,558.70/x
  3. Step 3: Cross multiply
    845,828.52x = 1,268,976.96 × 390,558.70
  4. Step 4: Simplify right side
    845,828.52x = 495,609,991,827.55
  5. Step 5: Solve for x
    x = 495,609,991,827.55/845,828.52
  6. Step 6: Final answer
    x = 585,946.18

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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.