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Finding the Fourth Proportional to 438,486.66, 604,700.93 and 291,050.78

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Solution

The fourth proportional to 438,486.66, 604,700.93 and 291,050.78 is: 401,377.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,486.66 : 604,700.93 = 291,050.78 : x
  2. Step 2: Convert to fraction form
    438,486.66/604,700.93 = 291,050.78/x
  3. Step 3: Cross multiply
    438,486.66x = 604,700.93 × 291,050.78
  4. Step 4: Simplify right side
    438,486.66x = 175,998,675,047.35
  5. Step 5: Solve for x
    x = 175,998,675,047.35/438,486.66
  6. Step 6: Final answer
    x = 401,377.49

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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.