Home / 1,133,318.80-1,699,978.20-385,364.80

Finding the Fourth Proportional to 1,133,318.80, 1,699,978.20 and 385,364.80

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Solution

The fourth proportional to 1,133,318.80, 1,699,978.20 and 385,364.80 is: 578,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,318.80 : 1,699,978.20 = 385,364.80 : x
  2. Step 2: Convert to fraction form
    1,133,318.80/1,699,978.20 = 385,364.80/x
  3. Step 3: Cross multiply
    1,133,318.80x = 1,699,978.20 × 385,364.80
  4. Step 4: Simplify right side
    1,133,318.80x = 655,111,759,047.36
  5. Step 5: Solve for x
    x = 655,111,759,047.36/1,133,318.80
  6. Step 6: Final answer
    x = 578,047.20

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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.