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Finding the Fourth Proportional to 608,331.51, 912,763.98 and 288,714.20

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Solution

The fourth proportional to 608,331.51, 912,763.98 and 288,714.20 is: 433,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,331.51 : 912,763.98 = 288,714.20 : x
  2. Step 2: Convert to fraction form
    608,331.51/912,763.98 = 288,714.20/x
  3. Step 3: Cross multiply
    608,331.51x = 912,763.98 × 288,714.20
  4. Step 4: Simplify right side
    608,331.51x = 263,527,917,710.70
  5. Step 5: Solve for x
    x = 263,527,917,710.70/608,331.51
  6. Step 6: Final answer
    x = 433,197.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.