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Finding the Fourth Proportional to 527,018.02, 727,285.12 and 285,300.60

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Solution

The fourth proportional to 527,018.02, 727,285.12 and 285,300.60 is: 393,714.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,018.02 : 727,285.12 = 285,300.60 : x
  2. Step 2: Convert to fraction form
    527,018.02/727,285.12 = 285,300.60/x
  3. Step 3: Cross multiply
    527,018.02x = 727,285.12 × 285,300.60
  4. Step 4: Simplify right side
    527,018.02x = 207,494,877,666.50
  5. Step 5: Solve for x
    x = 207,494,877,666.50/527,018.02
  6. Step 6: Final answer
    x = 393,714.96

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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.