Home / 1,434,977.47-1,980,268.68-790,397.65

Finding the Fourth Proportional to 1,434,977.47, 1,980,268.68 and 790,397.65

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Solution

The fourth proportional to 1,434,977.47, 1,980,268.68 and 790,397.65 is: 1,090,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,977.47 : 1,980,268.68 = 790,397.65 : x
  2. Step 2: Convert to fraction form
    1,434,977.47/1,980,268.68 = 790,397.65/x
  3. Step 3: Cross multiply
    1,434,977.47x = 1,980,268.68 × 790,397.65
  4. Step 4: Simplify right side
    1,434,977.47x = 1,565,199,711,040.60
  5. Step 5: Solve for x
    x = 1,565,199,711,040.60/1,434,977.47
  6. Step 6: Final answer
    x = 1,090,748.63

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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.