Home / 739,029.32-1,019,861.96-399,497.57

Finding the Fourth Proportional to 739,029.32, 1,019,861.96 and 399,497.57

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Solution

The fourth proportional to 739,029.32, 1,019,861.96 and 399,497.57 is: 551,307.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,029.32 : 1,019,861.96 = 399,497.57 : x
  2. Step 2: Convert to fraction form
    739,029.32/1,019,861.96 = 399,497.57/x
  3. Step 3: Cross multiply
    739,029.32x = 1,019,861.96 × 399,497.57
  4. Step 4: Simplify right side
    739,029.32x = 407,432,371,483.12
  5. Step 5: Solve for x
    x = 407,432,371,483.12/739,029.32
  6. Step 6: Final answer
    x = 551,307.45

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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.