Home / 705,282.12-973,349.61-399,412.53

Finding the Fourth Proportional to 705,282.12, 973,349.61 and 399,412.53

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Solution

The fourth proportional to 705,282.12, 973,349.61 and 399,412.53 is: 551,223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,282.12 : 973,349.61 = 399,412.53 : x
  2. Step 2: Convert to fraction form
    705,282.12/973,349.61 = 399,412.53/x
  3. Step 3: Cross multiply
    705,282.12x = 973,349.61 × 399,412.53
  4. Step 4: Simplify right side
    705,282.12x = 388,768,030,304.61
  5. Step 5: Solve for x
    x = 388,768,030,304.61/705,282.12
  6. Step 6: Final answer
    x = 551,223.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.