Home / 1,148,187.84-1,584,561.44-638,901.28

Finding the Fourth Proportional to 1,148,187.84, 1,584,561.44 and 638,901.28

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Solution

The fourth proportional to 1,148,187.84, 1,584,561.44 and 638,901.28 is: 881,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,187.84 : 1,584,561.44 = 638,901.28 : x
  2. Step 2: Convert to fraction form
    1,148,187.84/1,584,561.44 = 638,901.28/x
  3. Step 3: Cross multiply
    1,148,187.84x = 1,584,561.44 × 638,901.28
  4. Step 4: Simplify right side
    1,148,187.84x = 1,012,378,332,254.64
  5. Step 5: Solve for x
    x = 1,012,378,332,254.64/1,148,187.84
  6. Step 6: Final answer
    x = 881,718.39

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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.