Home / 749,681.67-1,034,557.61-405,517.80

Finding the Fourth Proportional to 749,681.67, 1,034,557.61 and 405,517.80

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Solution

The fourth proportional to 749,681.67, 1,034,557.61 and 405,517.80 is: 559,612.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,681.67 : 1,034,557.61 = 405,517.80 : x
  2. Step 2: Convert to fraction form
    749,681.67/1,034,557.61 = 405,517.80/x
  3. Step 3: Cross multiply
    749,681.67x = 1,034,557.61 × 405,517.80
  4. Step 4: Simplify right side
    749,681.67x = 419,531,523,952.87
  5. Step 5: Solve for x
    x = 419,531,523,952.87/749,681.67
  6. Step 6: Final answer
    x = 559,612.89

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1.5x scale

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.