Home / 739,985.74-1,021,183.59-400,454.08

Finding the Fourth Proportional to 739,985.74, 1,021,183.59 and 400,454.08

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Solution

The fourth proportional to 739,985.74, 1,021,183.59 and 400,454.08 is: 552,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,985.74 : 1,021,183.59 = 400,454.08 : x
  2. Step 2: Convert to fraction form
    739,985.74/1,021,183.59 = 400,454.08/x
  3. Step 3: Cross multiply
    739,985.74x = 1,021,183.59 × 400,454.08
  4. Step 4: Simplify right side
    739,985.74x = 408,937,135,044.55
  5. Step 5: Solve for x
    x = 408,937,135,044.55/739,985.74
  6. Step 6: Final answer
    x = 552,628.40

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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.