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Finding the Fourth Proportional to 556,917.60, 768,547.04 and 302,268.72

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Solution

The fourth proportional to 556,917.60, 768,547.04 and 302,268.72 is: 417,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,917.60 : 768,547.04 = 302,268.72 : x
  2. Step 2: Convert to fraction form
    556,917.60/768,547.04 = 302,268.72/x
  3. Step 3: Cross multiply
    556,917.60x = 768,547.04 × 302,268.72
  4. Step 4: Simplify right side
    556,917.60x = 232,307,728,529.25
  5. Step 5: Solve for x
    x = 232,307,728,529.25/556,917.60
  6. Step 6: Final answer
    x = 417,131.24

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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.