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Finding the Fourth Proportional to 384,726.73, 530,647.52 and 270,030.96

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Solution

The fourth proportional to 384,726.73, 530,647.52 and 270,030.96 is: 372,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,726.73 : 530,647.52 = 270,030.96 : x
  2. Step 2: Convert to fraction form
    384,726.73/530,647.52 = 270,030.96/x
  3. Step 3: Cross multiply
    384,726.73x = 530,647.52 × 270,030.96
  4. Step 4: Simplify right side
    384,726.73x = 143,291,257,897.06
  5. Step 5: Solve for x
    x = 143,291,257,897.06/384,726.73
  6. Step 6: Final answer
    x = 372,449.45

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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.