Home / 1,136,089.20-1,703,485.80-426,140.40

Finding the Fourth Proportional to 1,136,089.20, 1,703,485.80 and 426,140.40

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Solution

The fourth proportional to 1,136,089.20, 1,703,485.80 and 426,140.40 is: 638,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,089.20 : 1,703,485.80 = 426,140.40 : x
  2. Step 2: Convert to fraction form
    1,136,089.20/1,703,485.80 = 426,140.40/x
  3. Step 3: Cross multiply
    1,136,089.20x = 1,703,485.80 × 426,140.40
  4. Step 4: Simplify right side
    1,136,089.20x = 725,924,120,206.32
  5. Step 5: Solve for x
    x = 725,924,120,206.32/1,136,089.20
  6. Step 6: Final answer
    x = 638,967.54

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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.