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Finding the Fourth Proportional to 495,530.30, 743,295.45 and 408,050.30

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Solution

The fourth proportional to 495,530.30, 743,295.45 and 408,050.30 is: 612,075.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,530.30 : 743,295.45 = 408,050.30 : x
  2. Step 2: Convert to fraction form
    495,530.30/743,295.45 = 408,050.30/x
  3. Step 3: Cross multiply
    495,530.30x = 743,295.45 × 408,050.30
  4. Step 4: Simplify right side
    495,530.30x = 303,301,931,361.14
  5. Step 5: Solve for x
    x = 303,301,931,361.14/495,530.30
  6. Step 6: Final answer
    x = 612,075.45

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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.