Home / 919,966.40-1,377,325.20-814,990.40

Finding the Fourth Proportional to 919,966.40, 1,377,325.20 and 814,990.40

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Solution

The fourth proportional to 919,966.40, 1,377,325.20 and 814,990.40 is: 1,220,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,966.40 : 1,377,325.20 = 814,990.40 : x
  2. Step 2: Convert to fraction form
    919,966.40/1,377,325.20 = 814,990.40/x
  3. Step 3: Cross multiply
    919,966.40x = 1,377,325.20 × 814,990.40
  4. Step 4: Simplify right side
    919,966.40x = 1,122,506,815,678.08
  5. Step 5: Solve for x
    x = 1,122,506,815,678.08/919,966.40
  6. Step 6: Final answer
    x = 1,220,160.67

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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.