Home / 1,285,774.86-1,774,412.44-712,780.86

Finding the Fourth Proportional to 1,285,774.86, 1,774,412.44 and 712,780.86

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Solution

The fourth proportional to 1,285,774.86, 1,774,412.44 and 712,780.86 is: 983,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,774.86 : 1,774,412.44 = 712,780.86 : x
  2. Step 2: Convert to fraction form
    1,285,774.86/1,774,412.44 = 712,780.86/x
  3. Step 3: Cross multiply
    1,285,774.86x = 1,774,412.44 × 712,780.86
  4. Step 4: Simplify right side
    1,285,774.86x = 1,264,767,224,977.90
  5. Step 5: Solve for x
    x = 1,264,767,224,977.90/1,285,774.86
  6. Step 6: Final answer
    x = 983,661.50

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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.