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Finding the Fourth Proportional to 713,276.18, 984,421.80 and 441,431.60

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Solution

The fourth proportional to 713,276.18, 984,421.80 and 441,431.60 is: 609,237.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,276.18 : 984,421.80 = 441,431.60 : x
  2. Step 2: Convert to fraction form
    713,276.18/984,421.80 = 441,431.60/x
  3. Step 3: Cross multiply
    713,276.18x = 984,421.80 × 441,431.60
  4. Step 4: Simplify right side
    713,276.18x = 434,554,885,326.77
  5. Step 5: Solve for x
    x = 434,554,885,326.77/713,276.18
  6. Step 6: Final answer
    x = 609,237.91

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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.