Home / 1,299,445.20-1,949,167.80-1,249,678.80

Finding the Fourth Proportional to 1,299,445.20, 1,949,167.80 and 1,249,678.80

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Solution

The fourth proportional to 1,299,445.20, 1,949,167.80 and 1,249,678.80 is: 1,874,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,445.20 : 1,949,167.80 = 1,249,678.80 : x
  2. Step 2: Convert to fraction form
    1,299,445.20/1,949,167.80 = 1,249,678.80/x
  3. Step 3: Cross multiply
    1,299,445.20x = 1,949,167.80 × 1,249,678.80
  4. Step 4: Simplify right side
    1,299,445.20x = 2,435,833,677,302.64
  5. Step 5: Solve for x
    x = 2,435,833,677,302.64/1,299,445.20
  6. Step 6: Final answer
    x = 1,874,518.20

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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.