Home / 918,436.95-1,377,458.60-287,268.75

Finding the Fourth Proportional to 918,436.95, 1,377,458.60 and 287,268.75

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Solution

The fourth proportional to 918,436.95, 1,377,458.60 and 287,268.75 is: 430,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,436.95 : 1,377,458.60 = 287,268.75 : x
  2. Step 2: Convert to fraction form
    918,436.95/1,377,458.60 = 287,268.75/x
  3. Step 3: Cross multiply
    918,436.95x = 1,377,458.60 × 287,268.75
  4. Step 4: Simplify right side
    918,436.95x = 395,700,808,762.41
  5. Step 5: Solve for x
    x = 395,700,808,762.41/918,436.95
  6. Step 6: Final answer
    x = 430,841.56

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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.