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Finding the Fourth Proportional to 561,223.04, 774,504.81 and 306,590.63

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Solution

The fourth proportional to 561,223.04, 774,504.81 and 306,590.63 is: 423,104.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,223.04 : 774,504.81 = 306,590.63 : x
  2. Step 2: Convert to fraction form
    561,223.04/774,504.81 = 306,590.63/x
  3. Step 3: Cross multiply
    561,223.04x = 774,504.81 × 306,590.63
  4. Step 4: Simplify right side
    561,223.04x = 237,455,913,763.41
  5. Step 5: Solve for x
    x = 237,455,913,763.41/561,223.04
  6. Step 6: Final answer
    x = 423,104.36

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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.