Home / 742,739.22-1,024,980.08-403,207.47

Finding the Fourth Proportional to 742,739.22, 1,024,980.08 and 403,207.47

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Solution

The fourth proportional to 742,739.22, 1,024,980.08 and 403,207.47 is: 556,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,739.22 : 1,024,980.08 = 403,207.47 : x
  2. Step 2: Convert to fraction form
    742,739.22/1,024,980.08 = 403,207.47/x
  3. Step 3: Cross multiply
    742,739.22x = 1,024,980.08 × 403,207.47
  4. Step 4: Simplify right side
    742,739.22x = 413,279,622,841.16
  5. Step 5: Solve for x
    x = 413,279,622,841.16/742,739.22
  6. Step 6: Final answer
    x = 556,426.28

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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.