Home / 1,278,256.90-1,918,056.03-480,089.38

Finding the Fourth Proportional to 1,278,256.90, 1,918,056.03 and 480,089.38

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Solution

The fourth proportional to 1,278,256.90, 1,918,056.03 and 480,089.38 is: 720,385.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,256.90 : 1,918,056.03 = 480,089.38 : x
  2. Step 2: Convert to fraction form
    1,278,256.90/1,918,056.03 = 480,089.38/x
  3. Step 3: Cross multiply
    1,278,256.90x = 1,918,056.03 × 480,089.38
  4. Step 4: Simplify right side
    1,278,256.90x = 920,838,330,247.96
  5. Step 5: Solve for x
    x = 920,838,330,247.96/1,278,256.90
  6. Step 6: Final answer
    x = 720,385.96

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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.