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Finding the Fourth Proportional to 555,304.72, 766,336.08 and 313,623.40

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Solution

The fourth proportional to 555,304.72, 766,336.08 and 313,623.40 is: 432,809.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,304.72 : 766,336.08 = 313,623.40 : x
  2. Step 2: Convert to fraction form
    555,304.72/766,336.08 = 313,623.40/x
  3. Step 3: Cross multiply
    555,304.72x = 766,336.08 × 313,623.40
  4. Step 4: Simplify right side
    555,304.72x = 240,340,926,952.27
  5. Step 5: Solve for x
    x = 240,340,926,952.27/555,304.72
  6. Step 6: Final answer
    x = 432,809.08

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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.