Home / 875,539.10-1,207,784.39-712,378.01

Finding the Fourth Proportional to 875,539.10, 1,207,784.39 and 712,378.01

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Solution

The fourth proportional to 875,539.10, 1,207,784.39 and 712,378.01 is: 982,707.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,539.10 : 1,207,784.39 = 712,378.01 : x
  2. Step 2: Convert to fraction form
    875,539.10/1,207,784.39 = 712,378.01/x
  3. Step 3: Cross multiply
    875,539.10x = 1,207,784.39 × 712,378.01
  4. Step 4: Simplify right side
    875,539.10x = 860,399,039,714.84
  5. Step 5: Solve for x
    x = 860,399,039,714.84/875,539.10
  6. Step 6: Final answer
    x = 982,707.73

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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.