Home / 686,642.40-1,029,963.60-570,002.40

Finding the Fourth Proportional to 686,642.40, 1,029,963.60 and 570,002.40

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Solution

The fourth proportional to 686,642.40, 1,029,963.60 and 570,002.40 is: 855,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,642.40 : 1,029,963.60 = 570,002.40 : x
  2. Step 2: Convert to fraction form
    686,642.40/1,029,963.60 = 570,002.40/x
  3. Step 3: Cross multiply
    686,642.40x = 1,029,963.60 × 570,002.40
  4. Step 4: Simplify right side
    686,642.40x = 587,081,723,912.64
  5. Step 5: Solve for x
    x = 587,081,723,912.64/686,642.40
  6. Step 6: Final answer
    x = 855,003.60

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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.