Home / 456,051.60-684,077.40-140,605.20

Finding the Fourth Proportional to 456,051.60, 684,077.40 and 140,605.20

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Solution

The fourth proportional to 456,051.60, 684,077.40 and 140,605.20 is: 210,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,051.60 : 684,077.40 = 140,605.20 : x
  2. Step 2: Convert to fraction form
    456,051.60/684,077.40 = 140,605.20/x
  3. Step 3: Cross multiply
    456,051.60x = 684,077.40 × 140,605.20
  4. Step 4: Simplify right side
    456,051.60x = 96,184,839,642.48
  5. Step 5: Solve for x
    x = 96,184,839,642.48/456,051.60
  6. Step 6: Final answer
    x = 210,907.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.