Home / 716,984.02-989,466.13-394,724.10

Finding the Fourth Proportional to 716,984.02, 989,466.13 and 394,724.10

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Solution

The fourth proportional to 716,984.02, 989,466.13 and 394,724.10 is: 544,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,984.02 : 989,466.13 = 394,724.10 : x
  2. Step 2: Convert to fraction form
    716,984.02/989,466.13 = 394,724.10/x
  3. Step 3: Cross multiply
    716,984.02x = 989,466.13 × 394,724.10
  4. Step 4: Simplify right side
    716,984.02x = 390,566,127,644.73
  5. Step 5: Solve for x
    x = 390,566,127,644.73/716,984.02
  6. Step 6: Final answer
    x = 544,734.77

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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.