Home / 841,638.60-1,263,624.30-664,345.80

Finding the Fourth Proportional to 841,638.60, 1,263,624.30 and 664,345.80

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Solution

The fourth proportional to 841,638.60, 1,263,624.30 and 664,345.80 is: 997,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,638.60 : 1,263,624.30 = 664,345.80 : x
  2. Step 2: Convert to fraction form
    841,638.60/1,263,624.30 = 664,345.80/x
  3. Step 3: Cross multiply
    841,638.60x = 1,263,624.30 × 664,345.80
  4. Step 4: Simplify right side
    841,638.60x = 839,483,496,482.94
  5. Step 5: Solve for x
    x = 839,483,496,482.94/841,638.60
  6. Step 6: Final answer
    x = 997,439.40

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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.