Home / 676,812.60-1,015,218.90-620,825.40

Finding the Fourth Proportional to 676,812.60, 1,015,218.90 and 620,825.40

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Solution

The fourth proportional to 676,812.60, 1,015,218.90 and 620,825.40 is: 931,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,812.60 : 1,015,218.90 = 620,825.40 : x
  2. Step 2: Convert to fraction form
    676,812.60/1,015,218.90 = 620,825.40/x
  3. Step 3: Cross multiply
    676,812.60x = 1,015,218.90 × 620,825.40
  4. Step 4: Simplify right side
    676,812.60x = 630,273,679,680.06
  5. Step 5: Solve for x
    x = 630,273,679,680.06/676,812.60
  6. Step 6: Final answer
    x = 931,238.10

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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.