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Finding the Fourth Proportional to 555,081.81, 766,031.45 and 340,180.35

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Solution

The fourth proportional to 555,081.81, 766,031.45 and 340,180.35 is: 469,460.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,081.81 : 766,031.45 = 340,180.35 : x
  2. Step 2: Convert to fraction form
    555,081.81/766,031.45 = 340,180.35/x
  3. Step 3: Cross multiply
    555,081.81x = 766,031.45 × 340,180.35
  4. Step 4: Simplify right side
    555,081.81x = 260,588,846,772.01
  5. Step 5: Solve for x
    x = 260,588,846,772.01/555,081.81
  6. Step 6: Final answer
    x = 469,460.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.