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Finding the Fourth Proportional to 661,017.92, 912,483.81 and 446,448.62

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Solution

The fourth proportional to 661,017.92, 912,483.81 and 446,448.62 is: 616,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,017.92 : 912,483.81 = 446,448.62 : x
  2. Step 2: Convert to fraction form
    661,017.92/912,483.81 = 446,448.62/x
  3. Step 3: Cross multiply
    661,017.92x = 912,483.81 × 446,448.62
  4. Step 4: Simplify right side
    661,017.92x = 407,377,140,028.05
  5. Step 5: Solve for x
    x = 407,377,140,028.05/661,017.92
  6. Step 6: Final answer
    x = 616,287.59

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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.