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Finding the Fourth Proportional to 569,090.40, 853,635.60 and 285,655.20

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Solution

The fourth proportional to 569,090.40, 853,635.60 and 285,655.20 is: 428,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,090.40 : 853,635.60 = 285,655.20 : x
  2. Step 2: Convert to fraction form
    569,090.40/853,635.60 = 285,655.20/x
  3. Step 3: Cross multiply
    569,090.40x = 853,635.60 × 285,655.20
  4. Step 4: Simplify right side
    569,090.40x = 243,845,448,045.12
  5. Step 5: Solve for x
    x = 243,845,448,045.12/569,090.40
  6. Step 6: Final answer
    x = 428,482.80

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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.