Home / 557,783.22-769,746.78-303,134.40

Finding the Fourth Proportional to 557,783.22, 769,746.78 and 303,134.40

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Solution

The fourth proportional to 557,783.22, 769,746.78 and 303,134.40 is: 418,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,783.22 : 769,746.78 = 303,134.40 : x
  2. Step 2: Convert to fraction form
    557,783.22/769,746.78 = 303,134.40/x
  3. Step 3: Cross multiply
    557,783.22x = 769,746.78 × 303,134.40
  4. Step 4: Simplify right side
    557,783.22x = 233,336,728,307.23
  5. Step 5: Solve for x
    x = 233,336,728,307.23/557,783.22
  6. Step 6: Final answer
    x = 418,328.70

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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.