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Finding the Fourth Proportional to 673,305.44, 929,707.44 and 642,862.40

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Solution

The fourth proportional to 673,305.44, 929,707.44 and 642,862.40 is: 887,671.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,305.44 : 929,707.44 = 642,862.40 : x
  2. Step 2: Convert to fraction form
    673,305.44/929,707.44 = 642,862.40/x
  3. Step 3: Cross multiply
    673,305.44x = 929,707.44 × 642,862.40
  4. Step 4: Simplify right side
    673,305.44x = 597,673,956,176.26
  5. Step 5: Solve for x
    x = 597,673,956,176.26/673,305.44
  6. Step 6: Final answer
    x = 887,671.36

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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.