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Finding the Fourth Proportional to 557,444.92, 769,288.30 and 302,810.68

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Solution

The fourth proportional to 557,444.92, 769,288.30 and 302,810.68 is: 417,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,444.92 : 769,288.30 = 302,810.68 : x
  2. Step 2: Convert to fraction form
    557,444.92/769,288.30 = 302,810.68/x
  3. Step 3: Cross multiply
    557,444.92x = 769,288.30 × 302,810.68
  4. Step 4: Simplify right side
    557,444.92x = 232,948,713,239.04
  5. Step 5: Solve for x
    x = 232,948,713,239.04/557,444.92
  6. Step 6: Final answer
    x = 417,886.51

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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.