Home / 686,322.21-1,029,842.28-498,335.40

Finding the Fourth Proportional to 686,322.21, 1,029,842.28 and 498,335.40

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Solution

The fourth proportional to 686,322.21, 1,029,842.28 and 498,335.40 is: 747,763.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,322.21 : 1,029,842.28 = 498,335.40 : x
  2. Step 2: Convert to fraction form
    686,322.21/1,029,842.28 = 498,335.40/x
  3. Step 3: Cross multiply
    686,322.21x = 1,029,842.28 × 498,335.40
  4. Step 4: Simplify right side
    686,322.21x = 513,206,864,540.71
  5. Step 5: Solve for x
    x = 513,206,864,540.71/686,322.21
  6. Step 6: Final answer
    x = 747,763.74

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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.