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Finding the Fourth Proportional to 525,783.60, 788,675.40 and 146,703.60

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Solution

The fourth proportional to 525,783.60, 788,675.40 and 146,703.60 is: 220,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,783.60 : 788,675.40 = 146,703.60 : x
  2. Step 2: Convert to fraction form
    525,783.60/788,675.40 = 146,703.60/x
  3. Step 3: Cross multiply
    525,783.60x = 788,675.40 × 146,703.60
  4. Step 4: Simplify right side
    525,783.60x = 115,701,520,411.44
  5. Step 5: Solve for x
    x = 115,701,520,411.44/525,783.60
  6. Step 6: Final answer
    x = 220,055.40

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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.