Home / 780,651,705.72-1,077,289,303.26-446,120,397.36

Finding the Fourth Proportional to 780,651,705.72, 1,077,289,303.26 and 446,120,397.36

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Solution

The fourth proportional to 780,651,705.72, 1,077,289,303.26 and 446,120,397.36 is: 615,640,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,651,705.72 : 1,077,289,303.26 = 446,120,397.36 : x
  2. Step 2: Convert to fraction form
    780,651,705.72/1,077,289,303.26 = 446,120,397.36/x
  3. Step 3: Cross multiply
    780,651,705.72x = 1,077,289,303.26 × 446,120,397.36
  4. Step 4: Simplify right side
    780,651,705.72x = 480,600,732,042,028,736
  5. Step 5: Solve for x
    x = 480,600,732,042,028,736/780,651,705.72
  6. Step 6: Final answer
    x = 615,640,404.70

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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.