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Finding the Fourth Proportional to 716,416.48, 989,318.64 and 462,204.64

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Solution

The fourth proportional to 716,416.48, 989,318.64 and 462,204.64 is: 638,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,416.48 : 989,318.64 = 462,204.64 : x
  2. Step 2: Convert to fraction form
    716,416.48/989,318.64 = 462,204.64/x
  3. Step 3: Cross multiply
    716,416.48x = 989,318.64 × 462,204.64
  4. Step 4: Simplify right side
    716,416.48x = 457,267,665,846.49
  5. Step 5: Solve for x
    x = 457,267,665,846.49/716,416.48
  6. Step 6: Final answer
    x = 638,270.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.