Home / 958,855.81-1,437,272.65-318,988.64

Finding the Fourth Proportional to 958,855.81, 1,437,272.65 and 318,988.64

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Solution

The fourth proportional to 958,855.81, 1,437,272.65 and 318,988.64 is: 478,146.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,855.81 : 1,437,272.65 = 318,988.64 : x
  2. Step 2: Convert to fraction form
    958,855.81/1,437,272.65 = 318,988.64/x
  3. Step 3: Cross multiply
    958,855.81x = 1,437,272.65 × 318,988.64
  4. Step 4: Simplify right side
    958,855.81x = 458,473,653,721.51
  5. Step 5: Solve for x
    x = 458,473,653,721.51/958,855.81
  6. Step 6: Final answer
    x = 478,146.61

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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.