Home / 1,988,070.48-2,745,155.21-1,620,605.27

Finding the Fourth Proportional to 1,988,070.48, 2,745,155.21 and 1,620,605.27

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Solution

The fourth proportional to 1,988,070.48, 2,745,155.21 and 1,620,605.27 is: 2,237,754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,070.48 : 2,745,155.21 = 1,620,605.27 : x
  2. Step 2: Convert to fraction form
    1,988,070.48/2,745,155.21 = 1,620,605.27/x
  3. Step 3: Cross multiply
    1,988,070.48x = 2,745,155.21 × 1,620,605.27
  4. Step 4: Simplify right side
    1,988,070.48x = 4,448,812,999,053.82
  5. Step 5: Solve for x
    x = 4,448,812,999,053.82/1,988,070.48
  6. Step 6: Final answer
    x = 2,237,754.17

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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.