Home / 1,472,715.80-2,209,073.70-764,127.80

Finding the Fourth Proportional to 1,472,715.80, 2,209,073.70 and 764,127.80

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Solution

The fourth proportional to 1,472,715.80, 2,209,073.70 and 764,127.80 is: 1,146,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472,715.80 : 2,209,073.70 = 764,127.80 : x
  2. Step 2: Convert to fraction form
    1,472,715.80/2,209,073.70 = 764,127.80/x
  3. Step 3: Cross multiply
    1,472,715.80x = 2,209,073.70 × 764,127.80
  4. Step 4: Simplify right side
    1,472,715.80x = 1,688,014,626,418.86
  5. Step 5: Solve for x
    x = 1,688,014,626,418.86/1,472,715.80
  6. Step 6: Final answer
    x = 1,146,191.70

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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.