Home / 998,497.60-1,497,746.40-438,625.60

Finding the Fourth Proportional to 998,497.60, 1,497,746.40 and 438,625.60

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Solution

The fourth proportional to 998,497.60, 1,497,746.40 and 438,625.60 is: 657,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,497.60 : 1,497,746.40 = 438,625.60 : x
  2. Step 2: Convert to fraction form
    998,497.60/1,497,746.40 = 438,625.60/x
  3. Step 3: Cross multiply
    998,497.60x = 1,497,746.40 × 438,625.60
  4. Step 4: Simplify right side
    998,497.60x = 656,949,913,347.84
  5. Step 5: Solve for x
    x = 656,949,913,347.84/998,497.60
  6. Step 6: Final answer
    x = 657,938.40

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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.