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Finding the Fourth Proportional to 557,260.64, 769,215.88 and 330,904.52

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Solution

The fourth proportional to 557,260.64, 769,215.88 and 330,904.52 is: 456,764.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,260.64 : 769,215.88 = 330,904.52 : x
  2. Step 2: Convert to fraction form
    557,260.64/769,215.88 = 330,904.52/x
  3. Step 3: Cross multiply
    557,260.64x = 769,215.88 × 330,904.52
  4. Step 4: Simplify right side
    557,260.64x = 254,537,011,547.78
  5. Step 5: Solve for x
    x = 254,537,011,547.78/557,260.64
  6. Step 6: Final answer
    x = 456,764.74

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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.