Home / 1,122,374.40-1,548,492.48-638,818.56

Finding the Fourth Proportional to 1,122,374.40, 1,548,492.48 and 638,818.56

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Solution

The fourth proportional to 1,122,374.40, 1,548,492.48 and 638,818.56 is: 881,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,374.40 : 1,548,492.48 = 638,818.56 : x
  2. Step 2: Convert to fraction form
    1,122,374.40/1,548,492.48 = 638,818.56/x
  3. Step 3: Cross multiply
    1,122,374.40x = 1,548,492.48 × 638,818.56
  4. Step 4: Simplify right side
    1,122,374.40x = 989,205,736,244.43
  5. Step 5: Solve for x
    x = 989,205,736,244.43/1,122,374.40
  6. Step 6: Final answer
    x = 881,350.94

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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.