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Finding the Fourth Proportional to 508,973.04, 763,454.70 and 309,348.54

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Solution

The fourth proportional to 508,973.04, 763,454.70 and 309,348.54 is: 464,019.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,973.04 : 763,454.70 = 309,348.54 : x
  2. Step 2: Convert to fraction form
    508,973.04/763,454.70 = 309,348.54/x
  3. Step 3: Cross multiply
    508,973.04x = 763,454.70 × 309,348.54
  4. Step 4: Simplify right side
    508,973.04x = 236,173,596,801.14
  5. Step 5: Solve for x
    x = 236,173,596,801.14/508,973.04
  6. Step 6: Final answer
    x = 464,019.86

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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.