Home / 1,434,728.80-1,979,901.61-790,209.01

Finding the Fourth Proportional to 1,434,728.80, 1,979,901.61 and 790,209.01

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Solution

The fourth proportional to 1,434,728.80, 1,979,901.61 and 790,209.01 is: 1,090,475.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,728.80 : 1,979,901.61 = 790,209.01 : x
  2. Step 2: Convert to fraction form
    1,434,728.80/1,979,901.61 = 790,209.01/x
  3. Step 3: Cross multiply
    1,434,728.80x = 1,979,901.61 × 790,209.01
  4. Step 4: Simplify right side
    1,434,728.80x = 1,564,536,091,135.51
  5. Step 5: Solve for x
    x = 1,564,536,091,135.51/1,434,728.80
  6. Step 6: Final answer
    x = 1,090,475.14

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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.