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Finding the Fourth Proportional to 672,168.40, 927,657.76 and 502,107.28

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Solution

The fourth proportional to 672,168.40, 927,657.76 and 502,107.28 is: 692,956.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,168.40 : 927,657.76 = 502,107.28 : x
  2. Step 2: Convert to fraction form
    672,168.40/927,657.76 = 502,107.28/x
  3. Step 3: Cross multiply
    672,168.40x = 927,657.76 × 502,107.28
  4. Step 4: Simplify right side
    672,168.40x = 465,783,714,644.49
  5. Step 5: Solve for x
    x = 465,783,714,644.49/672,168.40
  6. Step 6: Final answer
    x = 692,956.88

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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.