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Finding the Fourth Proportional to 478,651.01, 660,707.55 and 427,575.03

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Solution

The fourth proportional to 478,651.01, 660,707.55 and 427,575.03 is: 590,204.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,651.01 : 660,707.55 = 427,575.03 : x
  2. Step 2: Convert to fraction form
    478,651.01/660,707.55 = 427,575.03/x
  3. Step 3: Cross multiply
    478,651.01x = 660,707.55 × 427,575.03
  4. Step 4: Simplify right side
    478,651.01x = 282,502,050,512.48
  5. Step 5: Solve for x
    x = 282,502,050,512.48/478,651.01
  6. Step 6: Final answer
    x = 590,204.65

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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.