Home / 739,807.80-1,020,934.68-400,276.08

Finding the Fourth Proportional to 739,807.80, 1,020,934.68 and 400,276.08

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Solution

The fourth proportional to 739,807.80, 1,020,934.68 and 400,276.08 is: 552,380.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,807.80 : 1,020,934.68 = 400,276.08 : x
  2. Step 2: Convert to fraction form
    739,807.80/1,020,934.68 = 400,276.08/x
  3. Step 3: Cross multiply
    739,807.80x = 1,020,934.68 × 400,276.08
  4. Step 4: Simplify right side
    739,807.80x = 408,655,731,646.45
  5. Step 5: Solve for x
    x = 408,655,731,646.45/739,807.80
  6. Step 6: Final answer
    x = 552,380.94

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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.