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Finding the Fourth Proportional to 550,337.60, 759,465.64 and 320,904.96

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Solution

The fourth proportional to 550,337.60, 759,465.64 and 320,904.96 is: 442,848.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,337.60 : 759,465.64 = 320,904.96 : x
  2. Step 2: Convert to fraction form
    550,337.60/759,465.64 = 320,904.96/x
  3. Step 3: Cross multiply
    550,337.60x = 759,465.64 × 320,904.96
  4. Step 4: Simplify right side
    550,337.60x = 243,716,290,825.57
  5. Step 5: Solve for x
    x = 243,716,290,825.57/550,337.60
  6. Step 6: Final answer
    x = 442,848.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.