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Finding the Fourth Proportional to 478,530.72, 716,707.98 and 371,053.44

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Solution

The fourth proportional to 478,530.72, 716,707.98 and 371,053.44 is: 555,736.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,530.72 : 716,707.98 = 371,053.44 : x
  2. Step 2: Convert to fraction form
    478,530.72/716,707.98 = 371,053.44/x
  3. Step 3: Cross multiply
    478,530.72x = 716,707.98 × 371,053.44
  4. Step 4: Simplify right side
    478,530.72x = 265,936,961,454.45
  5. Step 5: Solve for x
    x = 265,936,961,454.45/478,530.72
  6. Step 6: Final answer
    x = 555,736.45

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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.