Home / 739,808.55-1,020,935.72-400,276.83

Finding the Fourth Proportional to 739,808.55, 1,020,935.72 and 400,276.83

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Solution

The fourth proportional to 739,808.55, 1,020,935.72 and 400,276.83 is: 552,381.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,808.55 : 1,020,935.72 = 400,276.83 : x
  2. Step 2: Convert to fraction form
    739,808.55/1,020,935.72 = 400,276.83/x
  3. Step 3: Cross multiply
    739,808.55x = 1,020,935.72 × 400,276.83
  4. Step 4: Simplify right side
    739,808.55x = 408,656,911,633.98
  5. Step 5: Solve for x
    x = 408,656,911,633.98/739,808.55
  6. Step 6: Final answer
    x = 552,381.98

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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.