Home / 1,297,206.12-1,790,008.65-753,235.86

Finding the Fourth Proportional to 1,297,206.12, 1,790,008.65 and 753,235.86

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Solution

The fourth proportional to 1,297,206.12, 1,790,008.65 and 753,235.86 is: 1,039,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,206.12 : 1,790,008.65 = 753,235.86 : x
  2. Step 2: Convert to fraction form
    1,297,206.12/1,790,008.65 = 753,235.86/x
  3. Step 3: Cross multiply
    1,297,206.12x = 1,790,008.65 × 753,235.86
  4. Step 4: Simplify right side
    1,297,206.12x = 1,348,298,704,890.19
  5. Step 5: Solve for x
    x = 1,348,298,704,890.19/1,297,206.12
  6. Step 6: Final answer
    x = 1,039,386.64

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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.