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Finding the Fourth Proportional to 713,657.49, 984,756.60 and 407,753.68

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Solution

The fourth proportional to 713,657.49, 984,756.60 and 407,753.68 is: 562,648.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,657.49 : 984,756.60 = 407,753.68 : x
  2. Step 2: Convert to fraction form
    713,657.49/984,756.60 = 407,753.68/x
  3. Step 3: Cross multiply
    713,657.49x = 984,756.60 × 407,753.68
  4. Step 4: Simplify right side
    713,657.49x = 401,538,127,554.29
  5. Step 5: Solve for x
    x = 401,538,127,554.29/713,657.49
  6. Step 6: Final answer
    x = 562,648.24

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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.