Home / 859,631.70-1,289,458.35-260,598.90

Finding the Fourth Proportional to 859,631.70, 1,289,458.35 and 260,598.90

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Solution

The fourth proportional to 859,631.70, 1,289,458.35 and 260,598.90 is: 390,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,631.70 : 1,289,458.35 = 260,598.90 : x
  2. Step 2: Convert to fraction form
    859,631.70/1,289,458.35 = 260,598.90/x
  3. Step 3: Cross multiply
    859,631.70x = 1,289,458.35 × 260,598.90
  4. Step 4: Simplify right side
    859,631.70x = 336,031,427,605.82
  5. Step 5: Solve for x
    x = 336,031,427,605.82/859,631.70
  6. Step 6: Final answer
    x = 390,901.62

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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.