Home / 1,007,146.72-1,510,706.24-438,515.61

Finding the Fourth Proportional to 1,007,146.72, 1,510,706.24 and 438,515.61

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Solution

The fourth proportional to 1,007,146.72, 1,510,706.24 and 438,515.61 is: 657,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,146.72 : 1,510,706.24 = 438,515.61 : x
  2. Step 2: Convert to fraction form
    1,007,146.72/1,510,706.24 = 438,515.61/x
  3. Step 3: Cross multiply
    1,007,146.72x = 1,510,706.24 × 438,515.61
  4. Step 4: Simplify right side
    1,007,146.72x = 662,468,268,364.41
  5. Step 5: Solve for x
    x = 662,468,268,364.41/1,007,146.72
  6. Step 6: Final answer
    x = 657,767.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.