Home / 528,534.14-729,369.24-310,767.42

Finding the Fourth Proportional to 528,534.14, 729,369.24 and 310,767.42

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Solution

The fourth proportional to 528,534.14, 729,369.24 and 310,767.42 is: 428,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,534.14 : 729,369.24 = 310,767.42 : x
  2. Step 2: Convert to fraction form
    528,534.14/729,369.24 = 310,767.42/x
  3. Step 3: Cross multiply
    528,534.14x = 729,369.24 × 310,767.42
  4. Step 4: Simplify right side
    528,534.14x = 226,664,196,942.16
  5. Step 5: Solve for x
    x = 226,664,196,942.16/528,534.14
  6. Step 6: Final answer
    x = 428,854.41

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Double scale
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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.