Home / 742,620.16-1,024,788.32-403,081.12

Finding the Fourth Proportional to 742,620.16, 1,024,788.32 and 403,081.12

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Solution

The fourth proportional to 742,620.16, 1,024,788.32 and 403,081.12 is: 556,237.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,620.16 : 1,024,788.32 = 403,081.12 : x
  2. Step 2: Convert to fraction form
    742,620.16/1,024,788.32 = 403,081.12/x
  3. Step 3: Cross multiply
    742,620.16x = 1,024,788.32 × 403,081.12
  4. Step 4: Simplify right side
    742,620.16x = 413,072,823,788.52
  5. Step 5: Solve for x
    x = 413,072,823,788.52/742,620.16
  6. Step 6: Final answer
    x = 556,237.02

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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.