Home / 657,266.40-985,899.60-302,972.40

Finding the Fourth Proportional to 657,266.40, 985,899.60 and 302,972.40

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Solution

The fourth proportional to 657,266.40, 985,899.60 and 302,972.40 is: 454,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,266.40 : 985,899.60 = 302,972.40 : x
  2. Step 2: Convert to fraction form
    657,266.40/985,899.60 = 302,972.40/x
  3. Step 3: Cross multiply
    657,266.40x = 985,899.60 × 302,972.40
  4. Step 4: Simplify right side
    657,266.40x = 298,700,367,971.04
  5. Step 5: Solve for x
    x = 298,700,367,971.04/657,266.40
  6. Step 6: Final answer
    x = 454,458.60

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Double scale
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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.