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Finding the Fourth Proportional to 525,852.80, 788,779.20 and 359,964.80

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Solution

The fourth proportional to 525,852.80, 788,779.20 and 359,964.80 is: 539,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,852.80 : 788,779.20 = 359,964.80 : x
  2. Step 2: Convert to fraction form
    525,852.80/788,779.20 = 359,964.80/x
  3. Step 3: Cross multiply
    525,852.80x = 788,779.20 × 359,964.80
  4. Step 4: Simplify right side
    525,852.80x = 283,932,746,972.16
  5. Step 5: Solve for x
    x = 283,932,746,972.16/525,852.80
  6. Step 6: Final answer
    x = 539,947.20

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Similar ratio
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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.