Home / 859,518.50-1,289,134.76-260,337.20

Finding the Fourth Proportional to 859,518.50, 1,289,134.76 and 260,337.20

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Solution

The fourth proportional to 859,518.50, 1,289,134.76 and 260,337.20 is: 390,462.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,518.50 : 1,289,134.76 = 260,337.20 : x
  2. Step 2: Convert to fraction form
    859,518.50/1,289,134.76 = 260,337.20/x
  3. Step 3: Cross multiply
    859,518.50x = 1,289,134.76 × 260,337.20
  4. Step 4: Simplify right side
    859,518.50x = 335,609,733,841.07
  5. Step 5: Solve for x
    x = 335,609,733,841.07/859,518.50
  6. Step 6: Final answer
    x = 390,462.49

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Double scale
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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.