Home / 726,064.70-1,089,097.05-525,443.90

Finding the Fourth Proportional to 726,064.70, 1,089,097.05 and 525,443.90

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Solution

The fourth proportional to 726,064.70, 1,089,097.05 and 525,443.90 is: 788,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,064.70 : 1,089,097.05 = 525,443.90 : x
  2. Step 2: Convert to fraction form
    726,064.70/1,089,097.05 = 525,443.90/x
  3. Step 3: Cross multiply
    726,064.70x = 1,089,097.05 × 525,443.90
  4. Step 4: Simplify right side
    726,064.70x = 572,259,401,430.50
  5. Step 5: Solve for x
    x = 572,259,401,430.50/726,064.70
  6. Step 6: Final answer
    x = 788,165.85

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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.