Home / 528,537.45-729,397.91-310,706.18

Finding the Fourth Proportional to 528,537.45, 729,397.91 and 310,706.18

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Solution

The fourth proportional to 528,537.45, 729,397.91 and 310,706.18 is: 428,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,537.45 : 729,397.91 = 310,706.18 : x
  2. Step 2: Convert to fraction form
    528,537.45/729,397.91 = 310,706.18/x
  3. Step 3: Cross multiply
    528,537.45x = 729,397.91 × 310,706.18
  4. Step 4: Simplify right side
    528,537.45x = 226,628,438,181.10
  5. Step 5: Solve for x
    x = 226,628,438,181.10/528,537.45
  6. Step 6: Final answer
    x = 428,784.07

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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.