Home / 1,136,051.20-1,703,428.80-426,102.40

Finding the Fourth Proportional to 1,136,051.20, 1,703,428.80 and 426,102.40

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Solution

The fourth proportional to 1,136,051.20, 1,703,428.80 and 426,102.40 is: 638,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,051.20 : 1,703,428.80 = 426,102.40 : x
  2. Step 2: Convert to fraction form
    1,136,051.20/1,703,428.80 = 426,102.40/x
  3. Step 3: Cross multiply
    1,136,051.20x = 1,703,428.80 × 426,102.40
  4. Step 4: Simplify right side
    1,136,051.20x = 725,835,099,909.12
  5. Step 5: Solve for x
    x = 725,835,099,909.12/1,136,051.20
  6. Step 6: Final answer
    x = 638,910.55

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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.