Home / 686,598.40-1,029,897.60-313,350.40

Finding the Fourth Proportional to 686,598.40, 1,029,897.60 and 313,350.40

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Solution

The fourth proportional to 686,598.40, 1,029,897.60 and 313,350.40 is: 470,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,598.40 : 1,029,897.60 = 313,350.40 : x
  2. Step 2: Convert to fraction form
    686,598.40/1,029,897.60 = 313,350.40/x
  3. Step 3: Cross multiply
    686,598.40x = 1,029,897.60 × 313,350.40
  4. Step 4: Simplify right side
    686,598.40x = 322,718,824,919.04
  5. Step 5: Solve for x
    x = 322,718,824,919.04/686,598.40
  6. Step 6: Final answer
    x = 470,025.60

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Similar ratio
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1.5x scale

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.