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Finding the Fourth Proportional to 1,309,957.97, 1,807,595.73 and 736,985.84

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Solution

The fourth proportional to 1,309,957.97, 1,807,595.73 and 736,985.84 is: 1,016,958.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,957.97 : 1,807,595.73 = 736,985.84 : x
  2. Step 2: Convert to fraction form
    1,309,957.97/1,807,595.73 = 736,985.84/x
  3. Step 3: Cross multiply
    1,309,957.97x = 1,807,595.73 × 736,985.84
  4. Step 4: Simplify right side
    1,309,957.97x = 1,332,172,448,416.48
  5. Step 5: Solve for x
    x = 1,332,172,448,416.48/1,309,957.97
  6. Step 6: Final answer
    x = 1,016,958.17

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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.