Home / 1,314,261.60-1,971,457.20-684,405.60

Finding the Fourth Proportional to 1,314,261.60, 1,971,457.20 and 684,405.60

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Solution

The fourth proportional to 1,314,261.60, 1,971,457.20 and 684,405.60 is: 1,026,642.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,261.60 : 1,971,457.20 = 684,405.60 : x
  2. Step 2: Convert to fraction form
    1,314,261.60/1,971,457.20 = 684,405.60/x
  3. Step 3: Cross multiply
    1,314,261.60x = 1,971,457.20 × 684,405.60
  4. Step 4: Simplify right side
    1,314,261.60x = 1,349,276,347,840.32
  5. Step 5: Solve for x
    x = 1,349,276,347,840.32/1,314,261.60
  6. Step 6: Final answer
    x = 1,026,642.14

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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.