Home / 739,778.79-1,020,894.71-400,247.04

Finding the Fourth Proportional to 739,778.79, 1,020,894.71 and 400,247.04

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Solution

The fourth proportional to 739,778.79, 1,020,894.71 and 400,247.04 is: 552,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,778.79 : 1,020,894.71 = 400,247.04 : x
  2. Step 2: Convert to fraction form
    739,778.79/1,020,894.71 = 400,247.04/x
  3. Step 3: Cross multiply
    739,778.79x = 1,020,894.71 × 400,247.04
  4. Step 4: Simplify right side
    739,778.79x = 408,610,085,829.16
  5. Step 5: Solve for x
    x = 408,610,085,829.16/739,778.79
  6. Step 6: Final answer
    x = 552,340.90

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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.