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Finding the Fourth Proportional to 450,807.40, 675,137.62 and 260,867.35

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Solution

The fourth proportional to 450,807.40, 675,137.62 and 260,867.35 is: 390,679.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,807.40 : 675,137.62 = 260,867.35 : x
  2. Step 2: Convert to fraction form
    450,807.40/675,137.62 = 260,867.35/x
  3. Step 3: Cross multiply
    450,807.40x = 675,137.62 × 260,867.35
  4. Step 4: Simplify right side
    450,807.40x = 176,121,361,814.71
  5. Step 5: Solve for x
    x = 176,121,361,814.71/450,807.40
  6. Step 6: Final answer
    x = 390,679.84

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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.