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Finding the Fourth Proportional to 389,508.48, 584,504.64 and 249,367.68

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Solution

The fourth proportional to 389,508.48, 584,504.64 and 249,367.68 is: 374,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,508.48 : 584,504.64 = 249,367.68 : x
  2. Step 2: Convert to fraction form
    389,508.48/584,504.64 = 249,367.68/x
  3. Step 3: Cross multiply
    389,508.48x = 584,504.64 × 249,367.68
  4. Step 4: Simplify right side
    389,508.48x = 145,756,566,026.04
  5. Step 5: Solve for x
    x = 145,756,566,026.04/389,508.48
  6. Step 6: Final answer
    x = 374,206.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.