Home / 1,431,753.57-2,147,630.96-420,875.60

Finding the Fourth Proportional to 1,431,753.57, 2,147,630.96 and 420,875.60

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Solution

The fourth proportional to 1,431,753.57, 2,147,630.96 and 420,875.60 is: 631,313.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,753.57 : 2,147,630.96 = 420,875.60 : x
  2. Step 2: Convert to fraction form
    1,431,753.57/2,147,630.96 = 420,875.60/x
  3. Step 3: Cross multiply
    1,431,753.57x = 2,147,630.96 × 420,875.60
  4. Step 4: Simplify right side
    1,431,753.57x = 903,885,459,182.61
  5. Step 5: Solve for x
    x = 903,885,459,182.61/1,431,753.57
  6. Step 6: Final answer
    x = 631,313.57

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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.