Home / 742,066.85-1,113,100.28-505,870.85

Finding the Fourth Proportional to 742,066.85, 1,113,100.28 and 505,870.85

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Solution

The fourth proportional to 742,066.85, 1,113,100.28 and 505,870.85 is: 758,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,066.85 : 1,113,100.28 = 505,870.85 : x
  2. Step 2: Convert to fraction form
    742,066.85/1,113,100.28 = 505,870.85/x
  3. Step 3: Cross multiply
    742,066.85x = 1,113,100.28 × 505,870.85
  4. Step 4: Simplify right side
    742,066.85x = 563,084,982,249.48
  5. Step 5: Solve for x
    x = 563,084,982,249.48/742,066.85
  6. Step 6: Final answer
    x = 758,806.28

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Double scale
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Similar ratio
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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.