Home / 843,421.40-1,265,423.70-814,261.40

Finding the Fourth Proportional to 843,421.40, 1,265,423.70 and 814,261.40

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Solution

The fourth proportional to 843,421.40, 1,265,423.70 and 814,261.40 is: 1,221,673.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,421.40 : 1,265,423.70 = 814,261.40 : x
  2. Step 2: Convert to fraction form
    843,421.40/1,265,423.70 = 814,261.40/x
  3. Step 3: Cross multiply
    843,421.40x = 1,265,423.70 × 814,261.40
  4. Step 4: Simplify right side
    843,421.40x = 1,030,385,673,555.18
  5. Step 5: Solve for x
    x = 1,030,385,673,555.18/843,421.40
  6. Step 6: Final answer
    x = 1,221,673.62

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1.5x scale

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.