Home / 382,607.12-527,683.40-339,618

Finding the Fourth Proportional to 382,607.12, 527,683.40 and 339,618

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Solution

The fourth proportional to 382,607.12, 527,683.40 and 339,618 is: 468,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,607.12 : 527,683.40 = 339,618 : x
  2. Step 2: Convert to fraction form
    382,607.12/527,683.40 = 339,618/x
  3. Step 3: Cross multiply
    382,607.12x = 527,683.40 × 339,618
  4. Step 4: Simplify right side
    382,607.12x = 179,210,780,941.20
  5. Step 5: Solve for x
    x = 179,210,780,941.20/382,607.12
  6. Step 6: Final answer
    x = 468,393.74

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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.