Home / 836,883.73-1,155,455.67-642,946.03

Finding the Fourth Proportional to 836,883.73, 1,155,455.67 and 642,946.03

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Solution

The fourth proportional to 836,883.73, 1,155,455.67 and 642,946.03 is: 887,692.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,883.73 : 1,155,455.67 = 642,946.03 : x
  2. Step 2: Convert to fraction form
    836,883.73/1,155,455.67 = 642,946.03/x
  3. Step 3: Cross multiply
    836,883.73x = 1,155,455.67 × 642,946.03
  4. Step 4: Simplify right side
    836,883.73x = 742,895,635,867.49
  5. Step 5: Solve for x
    x = 742,895,635,867.49/836,883.73
  6. Step 6: Final answer
    x = 887,692.77

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1.5x scale

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.