Home / 836,890.26-1,155,464.64-642,952.50

Finding the Fourth Proportional to 836,890.26, 1,155,464.64 and 642,952.50

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Solution

The fourth proportional to 836,890.26, 1,155,464.64 and 642,952.50 is: 887,701.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,890.26 : 1,155,464.64 = 642,952.50 : x
  2. Step 2: Convert to fraction form
    836,890.26/1,155,464.64 = 642,952.50/x
  3. Step 3: Cross multiply
    836,890.26x = 1,155,464.64 × 642,952.50
  4. Step 4: Simplify right side
    836,890.26x = 742,908,878,949.60
  5. Step 5: Solve for x
    x = 742,908,878,949.60/836,890.26
  6. Step 6: Final answer
    x = 887,701.67

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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.