Home / 836,946.90-1,155,542.58-643,008.96

Finding the Fourth Proportional to 836,946.90, 1,155,542.58 and 643,008.96

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Solution

The fourth proportional to 836,946.90, 1,155,542.58 and 643,008.96 is: 887,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,946.90 : 1,155,542.58 = 643,008.96 : x
  2. Step 2: Convert to fraction form
    836,946.90/1,155,542.58 = 643,008.96/x
  3. Step 3: Cross multiply
    836,946.90x = 1,155,542.58 × 643,008.96
  4. Step 4: Simplify right side
    836,946.90x = 743,024,232,601.52
  5. Step 5: Solve for x
    x = 743,024,232,601.52/836,946.90
  6. Step 6: Final answer
    x = 887,779.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.