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Finding the Fourth Proportional to 432,871.70, 597,445.12 and 285,437.06

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Solution

The fourth proportional to 432,871.70, 597,445.12 and 285,437.06 is: 393,957.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,871.70 : 597,445.12 = 285,437.06 : x
  2. Step 2: Convert to fraction form
    432,871.70/597,445.12 = 285,437.06/x
  3. Step 3: Cross multiply
    432,871.70x = 597,445.12 × 285,437.06
  4. Step 4: Simplify right side
    432,871.70x = 170,532,979,929.18
  5. Step 5: Solve for x
    x = 170,532,979,929.18/432,871.70
  6. Step 6: Final answer
    x = 393,957.34

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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.