Home / 1,314,276.40-1,971,414.60-684,420.40

Finding the Fourth Proportional to 1,314,276.40, 1,971,414.60 and 684,420.40

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Solution

The fourth proportional to 1,314,276.40, 1,971,414.60 and 684,420.40 is: 1,026,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,276.40 : 1,971,414.60 = 684,420.40 : x
  2. Step 2: Convert to fraction form
    1,314,276.40/1,971,414.60 = 684,420.40/x
  3. Step 3: Cross multiply
    1,314,276.40x = 1,971,414.60 × 684,420.40
  4. Step 4: Simplify right side
    1,314,276.40x = 1,349,276,369,097.84
  5. Step 5: Solve for x
    x = 1,349,276,369,097.84/1,314,276.40
  6. Step 6: Final answer
    x = 1,026,630.60

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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.