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Finding the Fourth Proportional to 525,703.40, 788,324.70 and 210,055.40

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Solution

The fourth proportional to 525,703.40, 788,324.70 and 210,055.40 is: 314,991.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,703.40 : 788,324.70 = 210,055.40 : x
  2. Step 2: Convert to fraction form
    525,703.40/788,324.70 = 210,055.40/x
  3. Step 3: Cross multiply
    525,703.40x = 788,324.70 × 210,055.40
  4. Step 4: Simplify right side
    525,703.40x = 165,591,860,188.38
  5. Step 5: Solve for x
    x = 165,591,860,188.38/525,703.40
  6. Step 6: Final answer
    x = 314,991.04

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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.