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Finding the Fourth Proportional to 525,714.40, 788,341.20 and 210,066.40

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Solution

The fourth proportional to 525,714.40, 788,341.20 and 210,066.40 is: 315,007.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,714.40 : 788,341.20 = 210,066.40 : x
  2. Step 2: Convert to fraction form
    525,714.40/788,341.20 = 210,066.40/x
  3. Step 3: Cross multiply
    525,714.40x = 788,341.20 × 210,066.40
  4. Step 4: Simplify right side
    525,714.40x = 165,603,997,855.68
  5. Step 5: Solve for x
    x = 165,603,997,855.68/525,714.40
  6. Step 6: Final answer
    x = 315,007.54

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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.