Home / 739,807.63-1,020,934.46-400,275.88

Finding the Fourth Proportional to 739,807.63, 1,020,934.46 and 400,275.88

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Solution

The fourth proportional to 739,807.63, 1,020,934.46 and 400,275.88 is: 552,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,807.63 : 1,020,934.46 = 400,275.88 : x
  2. Step 2: Convert to fraction form
    739,807.63/1,020,934.46 = 400,275.88/x
  3. Step 3: Cross multiply
    739,807.63x = 1,020,934.46 × 400,275.88
  4. Step 4: Simplify right side
    739,807.63x = 408,655,437,847.18
  5. Step 5: Solve for x
    x = 408,655,437,847.18/739,807.63
  6. Step 6: Final answer
    x = 552,380.68

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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.