Home / 428,316.81-591,068.39-237,328.53

Finding the Fourth Proportional to 428,316.81, 591,068.39 and 237,328.53

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Solution

The fourth proportional to 428,316.81, 591,068.39 and 237,328.53 is: 327,508.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,316.81 : 591,068.39 = 237,328.53 : x
  2. Step 2: Convert to fraction form
    428,316.81/591,068.39 = 237,328.53/x
  3. Step 3: Cross multiply
    428,316.81x = 591,068.39 × 237,328.53
  4. Step 4: Simplify right side
    428,316.81x = 140,277,390,941.52
  5. Step 5: Solve for x
    x = 140,277,390,941.52/428,316.81
  6. Step 6: Final answer
    x = 327,508.49

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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.