Home / 1,157,421.80-1,736,406.21-483,128.39

Finding the Fourth Proportional to 1,157,421.80, 1,736,406.21 and 483,128.39

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Solution

The fourth proportional to 1,157,421.80, 1,736,406.21 and 483,128.39 is: 724,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,421.80 : 1,736,406.21 = 483,128.39 : x
  2. Step 2: Convert to fraction form
    1,157,421.80/1,736,406.21 = 483,128.39/x
  3. Step 3: Cross multiply
    1,157,421.80x = 1,736,406.21 × 483,128.39
  4. Step 4: Simplify right side
    1,157,421.80x = 838,907,136,623.30
  5. Step 5: Solve for x
    x = 838,907,136,623.30/1,157,421.80
  6. Step 6: Final answer
    x = 724,806.75

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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.