Home / 1,435,498.57-1,980,978.29-790,903.81

Finding the Fourth Proportional to 1,435,498.57, 1,980,978.29 and 790,903.81

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Solution

The fourth proportional to 1,435,498.57, 1,980,978.29 and 790,903.81 is: 1,091,441.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,498.57 : 1,980,978.29 = 790,903.81 : x
  2. Step 2: Convert to fraction form
    1,435,498.57/1,980,978.29 = 790,903.81/x
  3. Step 3: Cross multiply
    1,435,498.57x = 1,980,978.29 × 790,903.81
  4. Step 4: Simplify right side
    1,435,498.57x = 1,566,763,273,133.77
  5. Step 5: Solve for x
    x = 1,566,763,273,133.77/1,435,498.57
  6. Step 6: Final answer
    x = 1,091,441.89

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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.