Home / 742,788.46-1,025,059.35-403,256.71

Finding the Fourth Proportional to 742,788.46, 1,025,059.35 and 403,256.71

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Solution

The fourth proportional to 742,788.46, 1,025,059.35 and 403,256.71 is: 556,500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,788.46 : 1,025,059.35 = 403,256.71 : x
  2. Step 2: Convert to fraction form
    742,788.46/1,025,059.35 = 403,256.71/x
  3. Step 3: Cross multiply
    742,788.46x = 1,025,059.35 × 403,256.71
  4. Step 4: Simplify right side
    742,788.46x = 413,362,061,035.74
  5. Step 5: Solve for x
    x = 413,362,061,035.74/742,788.46
  6. Step 6: Final answer
    x = 556,500.38

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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.