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Finding the Fourth Proportional to 719,416.96, 992,641.44 and 417,448.96

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Solution

The fourth proportional to 719,416.96, 992,641.44 and 417,448.96 is: 575,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,416.96 : 992,641.44 = 417,448.96 : x
  2. Step 2: Convert to fraction form
    719,416.96/992,641.44 = 417,448.96/x
  3. Step 3: Cross multiply
    719,416.96x = 992,641.44 × 417,448.96
  4. Step 4: Simplify right side
    719,416.96x = 414,377,136,780.90
  5. Step 5: Solve for x
    x = 414,377,136,780.90/719,416.96
  6. Step 6: Final answer
    x = 575,990.23

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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.