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Finding the Fourth Proportional to 505,060.59, 697,102.86 and 290,325.21

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Solution

The fourth proportional to 505,060.59, 697,102.86 and 290,325.21 is: 400,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,060.59 : 697,102.86 = 290,325.21 : x
  2. Step 2: Convert to fraction form
    505,060.59/697,102.86 = 290,325.21/x
  3. Step 3: Cross multiply
    505,060.59x = 697,102.86 × 290,325.21
  4. Step 4: Simplify right side
    505,060.59x = 202,386,534,221.10
  5. Step 5: Solve for x
    x = 202,386,534,221.10/505,060.59
  6. Step 6: Final answer
    x = 400,717.34

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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.