Home / 1,282,169.40-1,923,254.10-749,416.20

Finding the Fourth Proportional to 1,282,169.40, 1,923,254.10 and 749,416.20

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Solution

The fourth proportional to 1,282,169.40, 1,923,254.10 and 749,416.20 is: 1,124,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,169.40 : 1,923,254.10 = 749,416.20 : x
  2. Step 2: Convert to fraction form
    1,282,169.40/1,923,254.10 = 749,416.20/x
  3. Step 3: Cross multiply
    1,282,169.40x = 1,923,254.10 × 749,416.20
  4. Step 4: Simplify right side
    1,282,169.40x = 1,441,317,779,256.42
  5. Step 5: Solve for x
    x = 1,441,317,779,256.42/1,282,169.40
  6. Step 6: Final answer
    x = 1,124,124.30

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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.