Home / 742,846.45-1,025,112.18-403,314.70

Finding the Fourth Proportional to 742,846.45, 1,025,112.18 and 403,314.70

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Solution

The fourth proportional to 742,846.45, 1,025,112.18 and 403,314.70 is: 556,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,846.45 : 1,025,112.18 = 403,314.70 : x
  2. Step 2: Convert to fraction form
    742,846.45/1,025,112.18 = 403,314.70/x
  3. Step 3: Cross multiply
    742,846.45x = 1,025,112.18 × 403,314.70
  4. Step 4: Simplify right side
    742,846.45x = 413,442,811,343.05
  5. Step 5: Solve for x
    x = 413,442,811,343.05/742,846.45
  6. Step 6: Final answer
    x = 556,565.64

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Double scale
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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.