Home / 486,031.40-729,047.10-299,148.20

Finding the Fourth Proportional to 486,031.40, 729,047.10 and 299,148.20

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Solution

The fourth proportional to 486,031.40, 729,047.10 and 299,148.20 is: 448,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,031.40 : 729,047.10 = 299,148.20 : x
  2. Step 2: Convert to fraction form
    486,031.40/729,047.10 = 299,148.20/x
  3. Step 3: Cross multiply
    486,031.40x = 729,047.10 × 299,148.20
  4. Step 4: Simplify right side
    486,031.40x = 218,093,127,680.22
  5. Step 5: Solve for x
    x = 218,093,127,680.22/486,031.40
  6. Step 6: Final answer
    x = 448,722.30

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Similar ratio
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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.