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Finding the Fourth Proportional to 879,141, 1,213,214.58 and 476,733.32

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Solution

The fourth proportional to 879,141, 1,213,214.58 and 476,733.32 is: 657,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,141 : 1,213,214.58 = 476,733.32 : x
  2. Step 2: Convert to fraction form
    879,141/1,213,214.58 = 476,733.32/x
  3. Step 3: Cross multiply
    879,141x = 1,213,214.58 × 476,733.32
  4. Step 4: Simplify right side
    879,141x = 578,379,814,595.81
  5. Step 5: Solve for x
    x = 578,379,814,595.81/879,141
  6. Step 6: Final answer
    x = 657,891.98

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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.