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Finding the Fourth Proportional to 557,258.61, 769,019.70 and 302,609.79

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Solution

The fourth proportional to 557,258.61, 769,019.70 and 302,609.79 is: 417,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,258.61 : 769,019.70 = 302,609.79 : x
  2. Step 2: Convert to fraction form
    557,258.61/769,019.70 = 302,609.79/x
  3. Step 3: Cross multiply
    557,258.61x = 769,019.70 × 302,609.79
  4. Step 4: Simplify right side
    557,258.61x = 232,712,889,922.86
  5. Step 5: Solve for x
    x = 232,712,889,922.86/557,258.61
  6. Step 6: Final answer
    x = 417,603.04

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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.