Home / 988,008.60-1,482,704.10-427,445.40

Finding the Fourth Proportional to 988,008.60, 1,482,704.10 and 427,445.40

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Solution

The fourth proportional to 988,008.60, 1,482,704.10 and 427,445.40 is: 641,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,008.60 : 1,482,704.10 = 427,445.40 : x
  2. Step 2: Convert to fraction form
    988,008.60/1,482,704.10 = 427,445.40/x
  3. Step 3: Cross multiply
    988,008.60x = 1,482,704.10 × 427,445.40
  4. Step 4: Simplify right side
    988,008.60x = 633,775,047,106.14
  5. Step 5: Solve for x
    x = 633,775,047,106.14/988,008.60
  6. Step 6: Final answer
    x = 641,467.14

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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.