Home / 713,040.02-984,002.97-390,743.18

Finding the Fourth Proportional to 713,040.02, 984,002.97 and 390,743.18

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Solution

The fourth proportional to 713,040.02, 984,002.97 and 390,743.18 is: 539,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,040.02 : 984,002.97 = 390,743.18 : x
  2. Step 2: Convert to fraction form
    713,040.02/984,002.97 = 390,743.18/x
  3. Step 3: Cross multiply
    713,040.02x = 984,002.97 × 390,743.18
  4. Step 4: Simplify right side
    713,040.02x = 384,492,444,707.23
  5. Step 5: Solve for x
    x = 384,492,444,707.23/713,040.02
  6. Step 6: Final answer
    x = 539,229.83

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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.