Home / 1,402,417.28-2,101,964.64-643,619.04

Finding the Fourth Proportional to 1,402,417.28, 2,101,964.64 and 643,619.04

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Solution

The fourth proportional to 1,402,417.28, 2,101,964.64 and 643,619.04 is: 964,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,417.28 : 2,101,964.64 = 643,619.04 : x
  2. Step 2: Convert to fraction form
    1,402,417.28/2,101,964.64 = 643,619.04/x
  3. Step 3: Cross multiply
    1,402,417.28x = 2,101,964.64 × 643,619.04
  4. Step 4: Simplify right side
    1,402,417.28x = 1,352,864,463,710.75
  5. Step 5: Solve for x
    x = 1,352,864,463,710.75/1,402,417.28
  6. Step 6: Final answer
    x = 964,666.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.