Home / 739,968.05-1,021,155.87-400,436.30

Finding the Fourth Proportional to 739,968.05, 1,021,155.87 and 400,436.30

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Solution

The fourth proportional to 739,968.05, 1,021,155.87 and 400,436.30 is: 552,602.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,968.05 : 1,021,155.87 = 400,436.30 : x
  2. Step 2: Convert to fraction form
    739,968.05/1,021,155.87 = 400,436.30/x
  3. Step 3: Cross multiply
    739,968.05x = 1,021,155.87 × 400,436.30
  4. Step 4: Simplify right side
    739,968.05x = 408,907,878,306.08
  5. Step 5: Solve for x
    x = 408,907,878,306.08/739,968.05
  6. Step 6: Final answer
    x = 552,602.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.