Home / 716,983.02-989,464.75-394,723.10

Finding the Fourth Proportional to 716,983.02, 989,464.75 and 394,723.10

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Solution

The fourth proportional to 716,983.02, 989,464.75 and 394,723.10 is: 544,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,983.02 : 989,464.75 = 394,723.10 : x
  2. Step 2: Convert to fraction form
    716,983.02/989,464.75 = 394,723.10/x
  3. Step 3: Cross multiply
    716,983.02x = 989,464.75 × 394,723.10
  4. Step 4: Simplify right side
    716,983.02x = 390,564,594,947.58
  5. Step 5: Solve for x
    x = 390,564,594,947.58/716,983.02
  6. Step 6: Final answer
    x = 544,733.40

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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.