Home / 769,526.30-1,154,289.45-486,091.10

Finding the Fourth Proportional to 769,526.30, 1,154,289.45 and 486,091.10

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Solution

The fourth proportional to 769,526.30, 1,154,289.45 and 486,091.10 is: 729,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,526.30 : 1,154,289.45 = 486,091.10 : x
  2. Step 2: Convert to fraction form
    769,526.30/1,154,289.45 = 486,091.10/x
  3. Step 3: Cross multiply
    769,526.30x = 1,154,289.45 × 486,091.10
  4. Step 4: Simplify right side
    769,526.30x = 561,089,828,468.90
  5. Step 5: Solve for x
    x = 561,089,828,468.90/769,526.30
  6. Step 6: Final answer
    x = 729,136.65

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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.