Home / 787,378,037.90-1,086,590,810.31-434,946,726.86

Finding the Fourth Proportional to 787,378,037.90, 1,086,590,810.31 and 434,946,726.86

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Solution

The fourth proportional to 787,378,037.90, 1,086,590,810.31 and 434,946,726.86 is: 600,231,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,378,037.90 : 1,086,590,810.31 = 434,946,726.86 : x
  2. Step 2: Convert to fraction form
    787,378,037.90/1,086,590,810.31 = 434,946,726.86/x
  3. Step 3: Cross multiply
    787,378,037.90x = 1,086,590,810.31 × 434,946,726.86
  4. Step 4: Simplify right side
    787,378,037.90x = 472,609,116,380,489,664
  5. Step 5: Solve for x
    x = 472,609,116,380,489,664/787,378,037.90
  6. Step 6: Final answer
    x = 600,231,519.84

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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.