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Finding the Fourth Proportional to 530,655.26, 732,297.39 and 288,935.06

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Solution

The fourth proportional to 530,655.26, 732,297.39 and 288,935.06 is: 398,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,655.26 : 732,297.39 = 288,935.06 : x
  2. Step 2: Convert to fraction form
    530,655.26/732,297.39 = 288,935.06/x
  3. Step 3: Cross multiply
    530,655.26x = 732,297.39 × 288,935.06
  4. Step 4: Simplify right side
    530,655.26x = 211,586,390,317.49
  5. Step 5: Solve for x
    x = 211,586,390,317.49/530,655.26
  6. Step 6: Final answer
    x = 398,726.64

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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.