Home / 1,520,470.71-2,280,781.94-455,411.30

Finding the Fourth Proportional to 1,520,470.71, 2,280,781.94 and 455,411.30

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Solution

The fourth proportional to 1,520,470.71, 2,280,781.94 and 455,411.30 is: 683,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,470.71 : 2,280,781.94 = 455,411.30 : x
  2. Step 2: Convert to fraction form
    1,520,470.71/2,280,781.94 = 455,411.30/x
  3. Step 3: Cross multiply
    1,520,470.71x = 2,280,781.94 × 455,411.30
  4. Step 4: Simplify right side
    1,520,470.71x = 1,038,693,854,630.96
  5. Step 5: Solve for x
    x = 1,038,693,854,630.96/1,520,470.71
  6. Step 6: Final answer
    x = 683,139.67

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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.