Home / 861,972.64-1,189,522.23-499,606.68

Finding the Fourth Proportional to 861,972.64, 1,189,522.23 and 499,606.68

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Solution

The fourth proportional to 861,972.64, 1,189,522.23 and 499,606.68 is: 689,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,972.64 : 1,189,522.23 = 499,606.68 : x
  2. Step 2: Convert to fraction form
    861,972.64/1,189,522.23 = 499,606.68/x
  3. Step 3: Cross multiply
    861,972.64x = 1,189,522.23 × 499,606.68
  4. Step 4: Simplify right side
    861,972.64x = 594,293,258,919.11
  5. Step 5: Solve for x
    x = 594,293,258,919.11/861,972.64
  6. Step 6: Final answer
    x = 689,457.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.