Home / 1,247,688.34-1,721,813.85-674,732.50

Finding the Fourth Proportional to 1,247,688.34, 1,721,813.85 and 674,732.50

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Solution

The fourth proportional to 1,247,688.34, 1,721,813.85 and 674,732.50 is: 931,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,688.34 : 1,721,813.85 = 674,732.50 : x
  2. Step 2: Convert to fraction form
    1,247,688.34/1,721,813.85 = 674,732.50/x
  3. Step 3: Cross multiply
    1,247,688.34x = 1,721,813.85 × 674,732.50
  4. Step 4: Simplify right side
    1,247,688.34x = 1,161,763,763,545.13
  5. Step 5: Solve for x
    x = 1,161,763,763,545.13/1,247,688.34
  6. Step 6: Final answer
    x = 931,132.98

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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.