Home / 840,286.56-1,260,990.36-435,851.52

Finding the Fourth Proportional to 840,286.56, 1,260,990.36 and 435,851.52

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Solution

The fourth proportional to 840,286.56, 1,260,990.36 and 435,851.52 is: 654,068.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,286.56 : 1,260,990.36 = 435,851.52 : x
  2. Step 2: Convert to fraction form
    840,286.56/1,260,990.36 = 435,851.52/x
  3. Step 3: Cross multiply
    840,286.56x = 1,260,990.36 × 435,851.52
  4. Step 4: Simplify right side
    840,286.56x = 549,604,565,111.35
  5. Step 5: Solve for x
    x = 549,604,565,111.35/840,286.56
  6. Step 6: Final answer
    x = 654,068.02

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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.