Home / 712,869.18-983,729.43-426,219.90

Finding the Fourth Proportional to 712,869.18, 983,729.43 and 426,219.90

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Solution

The fourth proportional to 712,869.18, 983,729.43 and 426,219.90 is: 588,165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,869.18 : 983,729.43 = 426,219.90 : x
  2. Step 2: Convert to fraction form
    712,869.18/983,729.43 = 426,219.90/x
  3. Step 3: Cross multiply
    712,869.18x = 983,729.43 × 426,219.90
  4. Step 4: Simplify right side
    712,869.18x = 419,285,059,281.66
  5. Step 5: Solve for x
    x = 419,285,059,281.66/712,869.18
  6. Step 6: Final answer
    x = 588,165.50

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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.