Home / 709,430.10-1,064,145.15-443,709.60

Finding the Fourth Proportional to 709,430.10, 1,064,145.15 and 443,709.60

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Solution

The fourth proportional to 709,430.10, 1,064,145.15 and 443,709.60 is: 665,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,430.10 : 1,064,145.15 = 443,709.60 : x
  2. Step 2: Convert to fraction form
    709,430.10/1,064,145.15 = 443,709.60/x
  3. Step 3: Cross multiply
    709,430.10x = 1,064,145.15 × 443,709.60
  4. Step 4: Simplify right side
    709,430.10x = 472,171,418,848.44
  5. Step 5: Solve for x
    x = 472,171,418,848.44/709,430.10
  6. Step 6: Final answer
    x = 665,564.40

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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.