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Finding the Fourth Proportional to 713,752.05, 984,887.03 and 407,848.26

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Solution

The fourth proportional to 713,752.05, 984,887.03 and 407,848.26 is: 562,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,752.05 : 984,887.03 = 407,848.26 : x
  2. Step 2: Convert to fraction form
    713,752.05/984,887.03 = 407,848.26/x
  3. Step 3: Cross multiply
    713,752.05x = 984,887.03 × 407,848.26
  4. Step 4: Simplify right side
    713,752.05x = 401,684,463,434.48
  5. Step 5: Solve for x
    x = 401,684,463,434.48/713,752.05
  6. Step 6: Final answer
    x = 562,778.72

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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.