Home / 988,235.40-1,482,353.10-858,327.60

Finding the Fourth Proportional to 988,235.40, 1,482,353.10 and 858,327.60

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Solution

The fourth proportional to 988,235.40, 1,482,353.10 and 858,327.60 is: 1,287,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,235.40 : 1,482,353.10 = 858,327.60 : x
  2. Step 2: Convert to fraction form
    988,235.40/1,482,353.10 = 858,327.60/x
  3. Step 3: Cross multiply
    988,235.40x = 1,482,353.10 × 858,327.60
  4. Step 4: Simplify right side
    988,235.40x = 1,272,344,578,675.56
  5. Step 5: Solve for x
    x = 1,272,344,578,675.56/988,235.40
  6. Step 6: Final answer
    x = 1,287,491.40

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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.