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Finding the Fourth Proportional to 389,897.51, 537,762.30 and 335,540.08

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Solution

The fourth proportional to 389,897.51, 537,762.30 and 335,540.08 is: 462,790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,897.51 : 537,762.30 = 335,540.08 : x
  2. Step 2: Convert to fraction form
    389,897.51/537,762.30 = 335,540.08/x
  3. Step 3: Cross multiply
    389,897.51x = 537,762.30 × 335,540.08
  4. Step 4: Simplify right side
    389,897.51x = 180,440,805,585.22
  5. Step 5: Solve for x
    x = 180,440,805,585.22/389,897.51
  6. Step 6: Final answer
    x = 462,790.35

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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.