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Finding the Fourth Proportional to 557,445.17, 769,288.65 and 302,810.93

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Solution

The fourth proportional to 557,445.17, 769,288.65 and 302,810.93 is: 417,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,445.17 : 769,288.65 = 302,810.93 : x
  2. Step 2: Convert to fraction form
    557,445.17/769,288.65 = 302,810.93/x
  3. Step 3: Cross multiply
    557,445.17x = 769,288.65 × 302,810.93
  4. Step 4: Simplify right side
    557,445.17x = 232,949,011,544.95
  5. Step 5: Solve for x
    x = 232,949,011,544.95/557,445.17
  6. Step 6: Final answer
    x = 417,886.86

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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.