Home / 1,223,281.55-1,688,149.40-672,020.43

Finding the Fourth Proportional to 1,223,281.55, 1,688,149.40 and 672,020.43

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Solution

The fourth proportional to 1,223,281.55, 1,688,149.40 and 672,020.43 is: 927,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,281.55 : 1,688,149.40 = 672,020.43 : x
  2. Step 2: Convert to fraction form
    1,223,281.55/1,688,149.40 = 672,020.43/x
  3. Step 3: Cross multiply
    1,223,281.55x = 1,688,149.40 × 672,020.43
  4. Step 4: Simplify right side
    1,223,281.55x = 1,134,470,882,332.14
  5. Step 5: Solve for x
    x = 1,134,470,882,332.14/1,223,281.55
  6. Step 6: Final answer
    x = 927,399.65

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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.