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Finding the Fourth Proportional to 557,160.85, 768,870.39 and 302,512.24

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Solution

The fourth proportional to 557,160.85, 768,870.39 and 302,512.24 is: 417,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,160.85 : 768,870.39 = 302,512.24 : x
  2. Step 2: Convert to fraction form
    557,160.85/768,870.39 = 302,512.24/x
  3. Step 3: Cross multiply
    557,160.85x = 768,870.39 × 302,512.24
  4. Step 4: Simplify right side
    557,160.85x = 232,592,703,948.57
  5. Step 5: Solve for x
    x = 232,592,703,948.57/557,160.85
  6. Step 6: Final answer
    x = 417,460.60

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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.