Home / 742,784.28-1,025,054.76-403,252.56

Finding the Fourth Proportional to 742,784.28, 1,025,054.76 and 403,252.56

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Solution

The fourth proportional to 742,784.28, 1,025,054.76 and 403,252.56 is: 556,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,784.28 : 1,025,054.76 = 403,252.56 : x
  2. Step 2: Convert to fraction form
    742,784.28/1,025,054.76 = 403,252.56/x
  3. Step 3: Cross multiply
    742,784.28x = 1,025,054.76 × 403,252.56
  4. Step 4: Simplify right side
    742,784.28x = 413,355,956,110.19
  5. Step 5: Solve for x
    x = 413,355,956,110.19/742,784.28
  6. Step 6: Final answer
    x = 556,495.29

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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.