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Finding the Fourth Proportional to 459,558.90, 687,698.10 and 291,159.90

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Solution

The fourth proportional to 459,558.90, 687,698.10 and 291,159.90 is: 435,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,558.90 : 687,698.10 = 291,159.90 : x
  2. Step 2: Convert to fraction form
    459,558.90/687,698.10 = 291,159.90/x
  3. Step 3: Cross multiply
    459,558.90x = 687,698.10 × 291,159.90
  4. Step 4: Simplify right side
    459,558.90x = 200,230,110,026.19
  5. Step 5: Solve for x
    x = 200,230,110,026.19/459,558.90
  6. Step 6: Final answer
    x = 435,700.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.