Home / 739,490.34-1,020,496.50-399,958.50

Finding the Fourth Proportional to 739,490.34, 1,020,496.50 and 399,958.50

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Solution

The fourth proportional to 739,490.34, 1,020,496.50 and 399,958.50 is: 551,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,490.34 : 1,020,496.50 = 399,958.50 : x
  2. Step 2: Convert to fraction form
    739,490.34/1,020,496.50 = 399,958.50/x
  3. Step 3: Cross multiply
    739,490.34x = 1,020,496.50 × 399,958.50
  4. Step 4: Simplify right side
    739,490.34x = 408,156,249,395.25
  5. Step 5: Solve for x
    x = 408,156,249,395.25/739,490.34
  6. Step 6: Final answer
    x = 551,942.64

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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.