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Finding the Fourth Proportional to 561,448.04, 774,800.33 and 306,799.25

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Solution

The fourth proportional to 561,448.04, 774,800.33 and 306,799.25 is: 423,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,448.04 : 774,800.33 = 306,799.25 : x
  2. Step 2: Convert to fraction form
    561,448.04/774,800.33 = 306,799.25/x
  3. Step 3: Cross multiply
    561,448.04x = 774,800.33 × 306,799.25
  4. Step 4: Simplify right side
    561,448.04x = 237,708,154,735.76
  5. Step 5: Solve for x
    x = 237,708,154,735.76/561,448.04
  6. Step 6: Final answer
    x = 423,384.07

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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.