Home / 513,141.35-708,154.76-340,761.30

Finding the Fourth Proportional to 513,141.35, 708,154.76 and 340,761.30

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Solution

The fourth proportional to 513,141.35, 708,154.76 and 340,761.30 is: 470,263.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,141.35 : 708,154.76 = 340,761.30 : x
  2. Step 2: Convert to fraction form
    513,141.35/708,154.76 = 340,761.30/x
  3. Step 3: Cross multiply
    513,141.35x = 708,154.76 × 340,761.30
  4. Step 4: Simplify right side
    513,141.35x = 241,311,736,618.79
  5. Step 5: Solve for x
    x = 241,311,736,618.79/513,141.35
  6. Step 6: Final answer
    x = 470,263.67

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.