Home / 780,307.17-1,170,460.76-219,341.67

Finding the Fourth Proportional to 780,307.17, 1,170,460.76 and 219,341.67

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Solution

The fourth proportional to 780,307.17, 1,170,460.76 and 219,341.67 is: 329,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,307.17 : 1,170,460.76 = 219,341.67 : x
  2. Step 2: Convert to fraction form
    780,307.17/1,170,460.76 = 219,341.67/x
  3. Step 3: Cross multiply
    780,307.17x = 1,170,460.76 × 219,341.67
  4. Step 4: Simplify right side
    780,307.17x = 256,730,819,482.67
  5. Step 5: Solve for x
    x = 256,730,819,482.67/780,307.17
  6. Step 6: Final answer
    x = 329,012.51

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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.