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Finding the Fourth Proportional to 660,228.70, 992,457.15 and 613,426.90

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Solution

The fourth proportional to 660,228.70, 992,457.15 and 613,426.90 is: 922,104.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,228.70 : 992,457.15 = 613,426.90 : x
  2. Step 2: Convert to fraction form
    660,228.70/992,457.15 = 613,426.90/x
  3. Step 3: Cross multiply
    660,228.70x = 992,457.15 × 613,426.90
  4. Step 4: Simplify right side
    660,228.70x = 608,799,912,907.34
  5. Step 5: Solve for x
    x = 608,799,912,907.34/660,228.70
  6. Step 6: Final answer
    x = 922,104.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.