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Finding the Fourth Proportional to 611,381.55, 842,318.69 and 473,084.98

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Solution

The fourth proportional to 611,381.55, 842,318.69 and 473,084.98 is: 651,783.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,381.55 : 842,318.69 = 473,084.98 : x
  2. Step 2: Convert to fraction form
    611,381.55/842,318.69 = 473,084.98/x
  3. Step 3: Cross multiply
    611,381.55x = 842,318.69 × 473,084.98
  4. Step 4: Simplify right side
    611,381.55x = 398,488,318,246.85
  5. Step 5: Solve for x
    x = 398,488,318,246.85/611,381.55
  6. Step 6: Final answer
    x = 651,783.36

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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.