Home / 389,712.81-537,317.27-297,945.83

Finding the Fourth Proportional to 389,712.81, 537,317.27 and 297,945.83

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Solution

The fourth proportional to 389,712.81, 537,317.27 and 297,945.83 is: 410,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,712.81 : 537,317.27 = 297,945.83 : x
  2. Step 2: Convert to fraction form
    389,712.81/537,317.27 = 297,945.83/x
  3. Step 3: Cross multiply
    389,712.81x = 537,317.27 × 297,945.83
  4. Step 4: Simplify right side
    389,712.81x = 160,091,435,807.17
  5. Step 5: Solve for x
    x = 160,091,435,807.17/389,712.81
  6. Step 6: Final answer
    x = 410,793.36

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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.