Home / 742,322.98-1,113,262.33-387,143.25

Finding the Fourth Proportional to 742,322.98, 1,113,262.33 and 387,143.25

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Solution

The fourth proportional to 742,322.98, 1,113,262.33 and 387,143.25 is: 580,599.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,322.98 : 1,113,262.33 = 387,143.25 : x
  2. Step 2: Convert to fraction form
    742,322.98/1,113,262.33 = 387,143.25/x
  3. Step 3: Cross multiply
    742,322.98x = 1,113,262.33 × 387,143.25
  4. Step 4: Simplify right side
    742,322.98x = 430,991,992,122.07
  5. Step 5: Solve for x
    x = 430,991,992,122.07/742,322.98
  6. Step 6: Final answer
    x = 580,599.02

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.