Home / 742,947.48-1,025,258.58-403,418.16

Finding the Fourth Proportional to 742,947.48, 1,025,258.58 and 403,418.16

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Solution

The fourth proportional to 742,947.48, 1,025,258.58 and 403,418.16 is: 556,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,947.48 : 1,025,258.58 = 403,418.16 : x
  2. Step 2: Convert to fraction form
    742,947.48/1,025,258.58 = 403,418.16/x
  3. Step 3: Cross multiply
    742,947.48x = 1,025,258.58 × 403,418.16
  4. Step 4: Simplify right side
    742,947.48x = 413,607,929,867.81
  5. Step 5: Solve for x
    x = 413,607,929,867.81/742,947.48
  6. Step 6: Final answer
    x = 556,712.21

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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.