Home / 1,287,411.24-1,931,453.34-747,148.16

Finding the Fourth Proportional to 1,287,411.24, 1,931,453.34 and 747,148.16

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Solution

The fourth proportional to 1,287,411.24, 1,931,453.34 and 747,148.16 is: 1,120,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,411.24 : 1,931,453.34 = 747,148.16 : x
  2. Step 2: Convert to fraction form
    1,287,411.24/1,931,453.34 = 747,148.16/x
  3. Step 3: Cross multiply
    1,287,411.24x = 1,931,453.34 × 747,148.16
  4. Step 4: Simplify right side
    1,287,411.24x = 1,443,081,809,106.85
  5. Step 5: Solve for x
    x = 1,443,081,809,106.85/1,287,411.24
  6. Step 6: Final answer
    x = 1,120,917.52

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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.