Home / 713,031.40-1,069,835.10-313,748.20

Finding the Fourth Proportional to 713,031.40, 1,069,835.10 and 313,748.20

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Solution

The fourth proportional to 713,031.40, 1,069,835.10 and 313,748.20 is: 470,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,031.40 : 1,069,835.10 = 313,748.20 : x
  2. Step 2: Convert to fraction form
    713,031.40/1,069,835.10 = 313,748.20/x
  3. Step 3: Cross multiply
    713,031.40x = 1,069,835.10 × 313,748.20
  4. Step 4: Simplify right side
    713,031.40x = 335,658,836,921.82
  5. Step 5: Solve for x
    x = 335,658,836,921.82/713,031.40
  6. Step 6: Final answer
    x = 470,749.03

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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.