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Finding the Fourth Proportional to 536,485.70, 804,728.55 and 283,420.10

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Solution

The fourth proportional to 536,485.70, 804,728.55 and 283,420.10 is: 425,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,485.70 : 804,728.55 = 283,420.10 : x
  2. Step 2: Convert to fraction form
    536,485.70/804,728.55 = 283,420.10/x
  3. Step 3: Cross multiply
    536,485.70x = 804,728.55 × 283,420.10
  4. Step 4: Simplify right side
    536,485.70x = 228,076,246,113.86
  5. Step 5: Solve for x
    x = 228,076,246,113.86/536,485.70
  6. Step 6: Final answer
    x = 425,130.15

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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.