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Finding the Fourth Proportional to 713,048.42, 984,014.57 and 390,751.59

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Solution

The fourth proportional to 713,048.42, 984,014.57 and 390,751.59 is: 539,241.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,048.42 : 984,014.57 = 390,751.59 : x
  2. Step 2: Convert to fraction form
    713,048.42/984,014.57 = 390,751.59/x
  3. Step 3: Cross multiply
    713,048.42x = 984,014.57 × 390,751.59
  4. Step 4: Simplify right side
    713,048.42x = 384,505,259,730.13
  5. Step 5: Solve for x
    x = 384,505,259,730.13/713,048.42
  6. Step 6: Final answer
    x = 539,241.45

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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.