Home / 765,455.86-1,148,182.68-260,069.32

Finding the Fourth Proportional to 765,455.86, 1,148,182.68 and 260,069.32

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Solution

The fourth proportional to 765,455.86, 1,148,182.68 and 260,069.32 is: 390,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,455.86 : 1,148,182.68 = 260,069.32 : x
  2. Step 2: Convert to fraction form
    765,455.86/1,148,182.68 = 260,069.32/x
  3. Step 3: Cross multiply
    765,455.86x = 1,148,182.68 × 260,069.32
  4. Step 4: Simplify right side
    765,455.86x = 298,607,088,823.38
  5. Step 5: Solve for x
    x = 298,607,088,823.38/765,455.86
  6. Step 6: Final answer
    x = 390,103.60

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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.