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Finding the Fourth Proportional to 631,486.10, 947,549.10 and 276,503.60

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Solution

The fourth proportional to 631,486.10, 947,549.10 and 276,503.60 is: 414,895.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,486.10 : 947,549.10 = 276,503.60 : x
  2. Step 2: Convert to fraction form
    631,486.10/947,549.10 = 276,503.60/x
  3. Step 3: Cross multiply
    631,486.10x = 947,549.10 × 276,503.60
  4. Step 4: Simplify right side
    631,486.10x = 262,000,737,326.76
  5. Step 5: Solve for x
    x = 262,000,737,326.76/631,486.10
  6. Step 6: Final answer
    x = 414,895.49

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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.