Home / 998,741.40-1,497,869.10-288,695.40

Finding the Fourth Proportional to 998,741.40, 1,497,869.10 and 288,695.40

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Solution

The fourth proportional to 998,741.40, 1,497,869.10 and 288,695.40 is: 432,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,741.40 : 1,497,869.10 = 288,695.40 : x
  2. Step 2: Convert to fraction form
    998,741.40/1,497,869.10 = 288,695.40/x
  3. Step 3: Cross multiply
    998,741.40x = 1,497,869.10 × 288,695.40
  4. Step 4: Simplify right side
    998,741.40x = 432,427,918,972.14
  5. Step 5: Solve for x
    x = 432,427,918,972.14/998,741.40
  6. Step 6: Final answer
    x = 432,972.86

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1.5x scale

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.