Home / 918,187.60-1,377,281.40-638,251.60

Finding the Fourth Proportional to 918,187.60, 1,377,281.40 and 638,251.60

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Solution

The fourth proportional to 918,187.60, 1,377,281.40 and 638,251.60 is: 957,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,187.60 : 1,377,281.40 = 638,251.60 : x
  2. Step 2: Convert to fraction form
    918,187.60/1,377,281.40 = 638,251.60/x
  3. Step 3: Cross multiply
    918,187.60x = 1,377,281.40 × 638,251.60
  4. Step 4: Simplify right side
    918,187.60x = 879,052,057,200.24
  5. Step 5: Solve for x
    x = 879,052,057,200.24/918,187.60
  6. Step 6: Final answer
    x = 957,377.40

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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.