Home / 1,386,180.80-2,078,234.40-755,806.40

Finding the Fourth Proportional to 1,386,180.80, 2,078,234.40 and 755,806.40

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Solution

The fourth proportional to 1,386,180.80, 2,078,234.40 and 755,806.40 is: 1,133,144.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,180.80 : 2,078,234.40 = 755,806.40 : x
  2. Step 2: Convert to fraction form
    1,386,180.80/2,078,234.40 = 755,806.40/x
  3. Step 3: Cross multiply
    1,386,180.80x = 2,078,234.40 × 755,806.40
  4. Step 4: Simplify right side
    1,386,180.80x = 1,570,742,860,220.16
  5. Step 5: Solve for x
    x = 1,570,742,860,220.16/1,386,180.80
  6. Step 6: Final answer
    x = 1,133,144.29

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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.