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Finding the Fourth Proportional to 672,417.68, 927,936.72 and 382,029.74

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Solution

The fourth proportional to 672,417.68, 927,936.72 and 382,029.74 is: 527,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,417.68 : 927,936.72 = 382,029.74 : x
  2. Step 2: Convert to fraction form
    672,417.68/927,936.72 = 382,029.74/x
  3. Step 3: Cross multiply
    672,417.68x = 927,936.72 × 382,029.74
  4. Step 4: Simplify right side
    672,417.68x = 354,499,423,878.05
  5. Step 5: Solve for x
    x = 354,499,423,878.05/672,417.68
  6. Step 6: Final answer
    x = 527,201.22

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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.