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Finding the Fourth Proportional to 525,055.40, 788,166.30 and 288,859.40

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Solution

The fourth proportional to 525,055.40, 788,166.30 and 288,859.40 is: 433,609.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,055.40 : 788,166.30 = 288,859.40 : x
  2. Step 2: Convert to fraction form
    525,055.40/788,166.30 = 288,859.40/x
  3. Step 3: Cross multiply
    525,055.40x = 788,166.30 × 288,859.40
  4. Step 4: Simplify right side
    525,055.40x = 227,669,244,518.22
  5. Step 5: Solve for x
    x = 227,669,244,518.22/525,055.40
  6. Step 6: Final answer
    x = 433,609.95

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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.