Home / 1,276,960,469.86-1,762,204,668.96-690,249,605.86

Finding the Fourth Proportional to 1,276,960,469.86, 1,762,204,668.96 and 690,249,605.86

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Solution

The fourth proportional to 1,276,960,469.86, 1,762,204,668.96 and 690,249,605.86 is: 952,544,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,960,469.86 : 1,762,204,668.96 = 690,249,605.86 : x
  2. Step 2: Convert to fraction form
    1,276,960,469.86/1,762,204,668.96 = 690,249,605.86/x
  3. Step 3: Cross multiply
    1,276,960,469.86x = 1,762,204,668.96 × 690,249,605.86
  4. Step 4: Simplify right side
    1,276,960,469.86x = 1,216,361,078,194,291,712
  5. Step 5: Solve for x
    x = 1,216,361,078,194,291,712/1,276,960,469.86
  6. Step 6: Final answer
    x = 952,544,034.76

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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.