Home / 490,020.48-735,555.60-385,569.36

Finding the Fourth Proportional to 490,020.48, 735,555.60 and 385,569.36

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Solution

The fourth proportional to 490,020.48, 735,555.60 and 385,569.36 is: 578,767.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,020.48 : 735,555.60 = 385,569.36 : x
  2. Step 2: Convert to fraction form
    490,020.48/735,555.60 = 385,569.36/x
  3. Step 3: Cross multiply
    490,020.48x = 735,555.60 × 385,569.36
  4. Step 4: Simplify right side
    490,020.48x = 283,607,701,936.42
  5. Step 5: Solve for x
    x = 283,607,701,936.42/490,020.48
  6. Step 6: Final answer
    x = 578,767.04

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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.