Home / 686,909.20-1,030,457.60-237,509.40

Finding the Fourth Proportional to 686,909.20, 1,030,457.60 and 237,509.40

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Solution

The fourth proportional to 686,909.20, 1,030,457.60 and 237,509.40 is: 356,296.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,909.20 : 1,030,457.60 = 237,509.40 : x
  2. Step 2: Convert to fraction form
    686,909.20/1,030,457.60 = 237,509.40/x
  3. Step 3: Cross multiply
    686,909.20x = 1,030,457.60 × 237,509.40
  4. Step 4: Simplify right side
    686,909.20x = 244,743,366,301.44
  5. Step 5: Solve for x
    x = 244,743,366,301.44/686,909.20
  6. Step 6: Final answer
    x = 356,296.53

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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.