Home / 1,314,288.40-1,971,432.60-684,432.40

Finding the Fourth Proportional to 1,314,288.40, 1,971,432.60 and 684,432.40

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Solution

The fourth proportional to 1,314,288.40, 1,971,432.60 and 684,432.40 is: 1,026,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,288.40 : 1,971,432.60 = 684,432.40 : x
  2. Step 2: Convert to fraction form
    1,314,288.40/1,971,432.60 = 684,432.40/x
  3. Step 3: Cross multiply
    1,314,288.40x = 1,971,432.60 × 684,432.40
  4. Step 4: Simplify right side
    1,314,288.40x = 1,349,312,345,856.24
  5. Step 5: Solve for x
    x = 1,349,312,345,856.24/1,314,288.40
  6. Step 6: Final answer
    x = 1,026,648.60

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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.